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date_sys

shortfx.fxDate.date_sys

System date and time operations module.

This module provides functions to retrieve current system date and time information, including current datetime, date, time, year, month, day, weekday, and timezone-aware operations. All 'current_*' functions return information based on the system's local time.

Functions

current_date() -> datetime

Gets the current local date (without the time component).

Description

Returns a datetime object representing only the current date with time components (hour, minute, second, microsecond) set to zero.

Returns:

Name Type Description
datetime datetime

A datetime object representing the current local date at midnight.
Usage Example

from shortfx.fxDate.date_sys import current_date today = current_date() print(today.strftime('%Y-%m-%d')) # Output varies 2026-01-03 print(today.strftime('%Y-%m-%d %H:%M:%S')) 2026-01-03 00:00:00

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_date() -> datetime:
    """Gets the current local date (without the time component).

    Description:
        Returns a datetime object representing only the current date with time
        components (hour, minute, second, microsecond) set to zero.

    Returns:
        datetime: A datetime object representing the current local date at midnight.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_date
        >>> today = current_date()
        >>> print(today.strftime('%Y-%m-%d'))  # Output varies
        2026-01-03
        >>> print(today.strftime('%Y-%m-%d %H:%M:%S'))
        2026-01-03 00:00:00

    Cost: O(1)
    """
    # We get the current datetime and then extract only the date part using .date().
    # To return a datetime object, we reconstruct it with time components set to zero.
    return datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)

current_datetime() -> datetime

Gets the current local date and time.

Description

Returns the current date and time according to the system's local timezone. The returned datetime object is timezone-naive.

Returns:

Name Type Description
datetime datetime

A datetime object representing the current local date and time.
Usage Example

from shortfx.fxDate.date_sys import current_datetime now = current_datetime() print(now.strftime('%Y-%m-%d %H:%M:%S')) # Output varies 2026-01-03 14:30:45

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_datetime() -> datetime:
    """Gets the current local date and time.

    Description:
        Returns the current date and time according to the system's local timezone.
        The returned datetime object is timezone-naive.

    Returns:
        datetime: A datetime object representing the current local date and time.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_datetime
        >>> now = current_datetime()
        >>> print(now.strftime('%Y-%m-%d %H:%M:%S'))  # Output varies
        2026-01-03 14:30:45

    Cost: O(1)
    """
    # The datetime.now() method returns the current local date and time.
    return datetime.now()

current_day() -> int

Gets the current day of the month (1-31).

Description

Returns the day component from the current system date as a number from 1 to 31 (depending on the month).

Returns:

Name Type Description
int int

The current day of the month as an integer.
Usage Example

from shortfx.fxDate.date_sys import current_day day = current_day() print(day) # Output varies 3

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_day() -> int:
    """Gets the current day of the month (1-31).

    Description:
        Returns the day component from the current system date as a number
        from 1 to 31 (depending on the month).

    Returns:
        int: The current day of the month as an integer.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_day
        >>> day = current_day()
        >>> print(day)  # Output varies
        3

    Cost: O(1)
    """
    # Extract the day attribute from the current datetime.
    return datetime.now().day

current_days_in_month() -> int

Returns the number of days in the current month.

Description

Delegates to date_operations.days_in_month using the current year and month.

Returns:

Name Type Description
int int

Number of days in the current month (28-31).
Example

from shortfx.fxDate.date_sys import current_days_in_month current_days_in_month() # For April 2026 30

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_days_in_month() -> int:
    """Returns the number of days in the current month.

    Description:
        Delegates to ``date_operations.days_in_month`` using the current
        year and month.

    Returns:
        int: Number of days in the current month (28-31).

    Example:
        >>> from shortfx.fxDate.date_sys import current_days_in_month
        >>> current_days_in_month()  # For April 2026
        30

    Complexity: O(1)
    """
    now = datetime.now()

    return date_ops.days_in_month(now.year, now.month)

current_first_day_of_month() -> datetime

Returns the first day of the current month at midnight.

Description

Delegates to date_operations.start_of_month using today's date.

Returns:

Name Type Description
datetime datetime

First day of the current month at 00:00:00.
Example

from shortfx.fxDate.date_sys import current_first_day_of_month current_first_day_of_month() # For March 2026 datetime.datetime(2026, 3, 1, 0, 0)

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_first_day_of_month() -> datetime:
    """Returns the first day of the current month at midnight.

    Description:
        Delegates to ``date_operations.start_of_month`` using today's date.

    Returns:
        datetime: First day of the current month at 00:00:00.

    Example:
        >>> from shortfx.fxDate.date_sys import current_first_day_of_month
        >>> current_first_day_of_month()  # For March 2026
        datetime.datetime(2026, 3, 1, 0, 0)

    Complexity: O(1)
    """
    return date_ops.start_of_month(datetime.now())

current_is_leap_year() -> bool

Checks if the current year is a leap year.

Description

Delegates to date_operations.is_leap_year using the current year.

Returns:

Name Type Description
bool bool

True if the current year is a leap year, False otherwise.
Example

from shortfx.fxDate.date_sys import current_is_leap_year current_is_leap_year() # For 2026 False

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_is_leap_year() -> bool:
    """Checks if the current year is a leap year.

    Description:
        Delegates to ``date_operations.is_leap_year`` using the current year.

    Returns:
        bool: True if the current year is a leap year, False otherwise.

    Example:
        >>> from shortfx.fxDate.date_sys import current_is_leap_year
        >>> current_is_leap_year()  # For 2026
        False

    Complexity: O(1)
    """
    return date_ops.is_leap_year(datetime.now().year)

current_is_weekend() -> bool

Checks if the current date is a weekend (Saturday or Sunday).

Description

Returns True if today is Saturday or Sunday, False if it's a weekday. Delegates to date_operations.is_weekend().

Returns:

Name Type Description
bool bool

True if current date is Saturday or Sunday, False otherwise.
Usage Example

from shortfx.fxDate.date_sys import current_is_weekend current_is_weekend() # For Friday 2026-01-03 False

For Saturday 2026-01-04

True

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_is_weekend() -> bool:
    """Checks if the current date is a weekend (Saturday or Sunday).

    Description:
        Returns True if today is Saturday or Sunday, False if it's a weekday.
        Delegates to date_operations.is_weekend().

    Returns:
        bool: True if current date is Saturday or Sunday, False otherwise.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_is_weekend
        >>> current_is_weekend()  # For Friday 2026-01-03
        False
        >>> # For Saturday 2026-01-04
        True

    Cost: O(1)
    """
    return date_ops.is_weekend(datetime.now())

current_is_working_day() -> bool

Checks if the current date is a working day (Monday to Friday).

Description

Returns True if today is a weekday (Monday through Friday), False if it's a weekend (Saturday or Sunday). Does not consider holidays. Delegates to date_operations.is_working_day().

Returns:

Name Type Description
bool bool

True if current date is Monday-Friday, False otherwise.
Usage Example

from shortfx.fxDate.date_sys import current_is_working_day current_is_working_day() # For Friday 2026-01-03 True

For Saturday 2026-01-04

False

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_is_working_day() -> bool:
    """Checks if the current date is a working day (Monday to Friday).

    Description:
        Returns True if today is a weekday (Monday through Friday), False
        if it's a weekend (Saturday or Sunday). Does not consider holidays.
        Delegates to date_operations.is_working_day().

    Returns:
        bool: True if current date is Monday-Friday, False otherwise.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_is_working_day
        >>> current_is_working_day()  # For Friday 2026-01-03
        True
        >>> # For Saturday 2026-01-04
        False

    Cost: O(1)
    """
    return date_ops.is_working_day(datetime.now())

current_last_day_of_month() -> datetime

Gets the last day of the current month.

Description

Returns a datetime object representing the last calendar day of the current month at midnight. Delegates to date_operations.last_day_of_month().

Returns:

Name Type Description
datetime datetime

A datetime object for the last day of the current month.
Usage Example

from shortfx.fxDate.date_sys import current_last_day_of_month last_day = current_last_day_of_month() # If current month is January 2026 print(last_day.strftime('%Y-%m-%d')) 2026-01-31

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_last_day_of_month() -> datetime:
    """Gets the last day of the current month.

    Description:
        Returns a datetime object representing the last calendar day of the
        current month at midnight. Delegates to date_operations.last_day_of_month().

    Returns:
        datetime: A datetime object for the last day of the current month.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_last_day_of_month
        >>> last_day = current_last_day_of_month()  # If current month is January 2026
        >>> print(last_day.strftime('%Y-%m-%d'))
        2026-01-31

    Cost: O(1)
    """
    return date_ops.last_day_of_month(datetime.now())

current_last_friday_of_month() -> datetime

Gets the last Friday of the current month.

Description

Returns a datetime object representing the last Friday occurring in the current month. Delegates to date_operations.last_weekday_of_month().

Returns:

Name Type Description
datetime datetime

A datetime object for the last Friday of the current month.
Usage Example

from shortfx.fxDate.date_sys import current_last_friday_of_month last_fri = current_last_friday_of_month() # For January 2026 print(last_fri.strftime('%Y-%m-%d %A')) 2026-01-30 Friday

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_last_friday_of_month() -> datetime:
    """Gets the last Friday of the current month.

    Description:
        Returns a datetime object representing the last Friday occurring in
        the current month. Delegates to date_operations.last_weekday_of_month().

    Returns:
        datetime: A datetime object for the last Friday of the current month.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_last_friday_of_month
        >>> last_fri = current_last_friday_of_month()  # For January 2026
        >>> print(last_fri.strftime('%Y-%m-%d %A'))
        2026-01-30 Friday

    Cost: O(1)
    """
    return date_ops.last_weekday_of_month(datetime.now(), calendar.FRIDAY)

current_month() -> int

Gets the current month (1-12).

Description

Returns the month component from the current system date as a number from 1 (January) to 12 (December).

Returns:

Name Type Description
int int

The current month as an integer (1 for January, 12 for December).
Usage Example

from shortfx.fxDate.date_sys import current_month month = current_month() print(month) # Output varies 1

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_month() -> int:
    """Gets the current month (1-12).

    Description:
        Returns the month component from the current system date as a number
        from 1 (January) to 12 (December).

    Returns:
        int: The current month as an integer (1 for January, 12 for December).

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_month
        >>> month = current_month()
        >>> print(month)  # Output varies
        1

    Cost: O(1)
    """
    # Extract the month attribute from the current datetime.
    return datetime.now().month

current_month_name(language: str = 'en') -> str

Returns the name of the current month in the specified language.

Description

Delegates to date_operations.month_name using today's date.

Parameters:

Name Type Description Default
language str

Two-letter ISO 639-1 language code. Defaults to 'en'.

 'en'

Returns:

Name Type Description
str str

Full month name (e.g. 'January', 'Enero').
Example

from shortfx.fxDate.date_sys import current_month_name current_month_name('en') # For January 'January'

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_month_name(language: str = 'en') -> str:
    """Returns the name of the current month in the specified language.

    Description:
        Delegates to ``date_operations.month_name`` using today's date.

    Args:
        language: Two-letter ISO 639-1 language code. Defaults to ``'en'``.

    Returns:
        str: Full month name (e.g. ``'January'``, ``'Enero'``).

    Example:
        >>> from shortfx.fxDate.date_sys import current_month_name
        >>> current_month_name('en')  # For January
        'January'

    Complexity: O(1)
    """
    return date_ops.month_name(datetime.now(), language)

current_next_friday() -> datetime

Gets the next Friday after the current date.

Description

Returns a datetime object representing the next Friday that occurs after today. If today is Friday, returns next week's Friday. Delegates to date_operations.next_weekday().

Returns:

Name Type Description
datetime datetime

A datetime object for the next Friday after today.
Usage Example

from shortfx.fxDate.date_sys import current_next_friday next_fri = current_next_friday() # If today is Friday 2026-01-03 print(next_fri.strftime('%Y-%m-%d %A')) 2026-01-10 Friday

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_next_friday() -> datetime:
    """Gets the next Friday after the current date.

    Description:
        Returns a datetime object representing the next Friday that occurs
        after today. If today is Friday, returns next week's Friday.
        Delegates to date_operations.next_weekday().

    Returns:
        datetime: A datetime object for the next Friday after today.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_next_friday
        >>> next_fri = current_next_friday()  # If today is Friday 2026-01-03
        >>> print(next_fri.strftime('%Y-%m-%d %A'))
        2026-01-10 Friday

    Cost: O(1)
    """
    return date_ops.next_weekday(datetime.now(), calendar.FRIDAY)

current_previous_friday() -> datetime

Gets the previous Friday before the current date.

Description

Returns a datetime object representing the most recent Friday that occurred before today. If today is Friday, returns last week's Friday. Delegates to date_operations.previous_weekday().

Returns:

Name Type Description
datetime datetime

A datetime object for the previous Friday before today.
Usage Example

from shortfx.fxDate.date_sys import current_previous_friday prev_fri = current_previous_friday() # If today is Friday 2026-01-03 print(prev_fri.strftime('%Y-%m-%d %A')) 2025-12-27 Friday

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_previous_friday() -> datetime:
    """Gets the previous Friday before the current date.

    Description:
        Returns a datetime object representing the most recent Friday that
        occurred before today. If today is Friday, returns last week's Friday.
        Delegates to date_operations.previous_weekday().

    Returns:
        datetime: A datetime object for the previous Friday before today.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_previous_friday
        >>> prev_fri = current_previous_friday()  # If today is Friday 2026-01-03
        >>> print(prev_fri.strftime('%Y-%m-%d %A'))
        2025-12-27 Friday

    Cost: O(1)
    """
    return date_ops.previous_weekday(datetime.now(), calendar.FRIDAY)

current_quarter() -> int

Returns the current quarter of the year (1-4).

Description

Delegates to date_operations.get_quarter using today's date.

Returns:

Name Type Description
int int

Quarter number (1 for Jan-Mar, 4 for Oct-Dec).
Example

from shortfx.fxDate.date_sys import current_quarter current_quarter() # For March 2026 1

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_quarter() -> int:
    """Returns the current quarter of the year (1-4).

    Description:
        Delegates to ``date_operations.get_quarter`` using today's date.

    Returns:
        int: Quarter number (1 for Jan-Mar, 4 for Oct-Dec).

    Example:
        >>> from shortfx.fxDate.date_sys import current_quarter
        >>> current_quarter()  # For March 2026
        1

    Complexity: O(1)
    """
    return date_ops.get_quarter(datetime.now())

current_season(hemisphere: str = 'northern', lang: str = 'en') -> str

Returns the current season of the year.

Description

Delegates to date_operations.get_season using today's date.

Parameters:

Name Type Description Default
hemisphere str

'northern' or 'southern'. Defaults to 'northern'.

 'northern'
lang str

Two-letter ISO 639-1 language code. Defaults to 'en'.

 'en'

Returns:

Name Type Description
str str

Season name (e.g. 'Spring', 'Primavera').
Example

from shortfx.fxDate.date_sys import current_season current_season('northern', 'en') # For April 2026 'Spring'

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_season(hemisphere: str = 'northern', lang: str = 'en') -> str:
    """Returns the current season of the year.

    Description:
        Delegates to ``date_operations.get_season`` using today's date.

    Args:
        hemisphere: ``'northern'`` or ``'southern'``. Defaults to ``'northern'``.
        lang: Two-letter ISO 639-1 language code. Defaults to ``'en'``.

    Returns:
        str: Season name (e.g. ``'Spring'``, ``'Primavera'``).

    Example:
        >>> from shortfx.fxDate.date_sys import current_season
        >>> current_season('northern', 'en')  # For April 2026
        'Spring'

    Complexity: O(1)
    """
    return date_ops.get_season(datetime.now(), hemisphere, lang)

current_time() -> datetime

Gets the current local time (without the date component).

Description

Returns a datetime object with the current time but using a minimal date (datetime.min.date()). Useful for time-only comparisons.

Returns:

Name Type Description
datetime datetime

A datetime object with current time and minimal date (0001-01-01).
Usage Example

from shortfx.fxDate.date_sys import current_time time_now = current_time() print(time_now.strftime('%H:%M:%S')) # Output varies 14:30:45 print(time_now.strftime('%Y-%m-%d %H:%M:%S')) 0001-01-01 14:30:45

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_time() -> datetime:
    """Gets the current local time (without the date component).

    Description:
        Returns a datetime object with the current time but using a minimal
        date (datetime.min.date()). Useful for time-only comparisons.

    Returns:
        datetime: A datetime object with current time and minimal date (0001-01-01).

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_time
        >>> time_now = current_time()
        >>> print(time_now.strftime('%H:%M:%S'))  # Output varies
        14:30:45
        >>> print(time_now.strftime('%Y-%m-%d %H:%M:%S'))
        0001-01-01 14:30:45

    Cost: O(1)
    """
    # We get the current datetime and then extract only the time part using .time().
    # To return a datetime object with only time information, we use a default date.
    return datetime.combine(datetime.min.date(), datetime.now().time())

current_week_number() -> int

Returns the current ISO week number (1-53).

Description

Delegates to datetime.isocalendar for the current date.

Returns:

Name Type Description
int int

ISO 8601 week number.
Example

from shortfx.fxDate.date_sys import current_week_number current_week_number() # For 2026-01-05 2

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_week_number() -> int:
    """Returns the current ISO week number (1-53).

    Description:
        Delegates to ``datetime.isocalendar`` for the current date.

    Returns:
        int: ISO 8601 week number.

    Example:
        >>> from shortfx.fxDate.date_sys import current_week_number
        >>> current_week_number()  # For 2026-01-05
        2

    Complexity: O(1)
    """
    return datetime.now().isocalendar()[1]

current_weekday_name(language: str = 'en') -> str

Gets the current weekday name for the current date.

Description

Returns the name of the current weekday in the specified language. Delegates to date_operations.weekday_name() for name resolution.

Parameters:

Name Type Description Default
language str

Language code for the weekday name. Supports 'en' (English) and 'es' (Spanish). Defaults to 'en'.

 'en'

Returns:

Name Type Description
str str

The name of the current day of the week.
Usage Example

from shortfx.fxDate.date_sys import current_weekday_name current_weekday_name('en') # For Friday 'Friday' current_weekday_name('es') # For Friday 'Viernes'

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_weekday_name(language: str = 'en') -> str:
    """Gets the current weekday name for the current date.

    Description:
        Returns the name of the current weekday in the specified language.
        Delegates to date_operations.weekday_name() for name resolution.

    Args:
        language (str, optional): Language code for the weekday name.
                                 Supports 'en' (English) and 'es' (Spanish).
                                 Defaults to 'en'.

    Returns:
        str: The name of the current day of the week.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_weekday_name
        >>> current_weekday_name('en')  # For Friday
        'Friday'
        >>> current_weekday_name('es')  # For Friday
        'Viernes'

    Cost: O(1)
    """
    return date_ops.weekday_name(datetime.now(), language)

current_weekday_number(start_day: str = 'european') -> int

Retrieves the current day of the week as a number.

Description

Returns the current weekday as an integer, supporting both European (Monday=0) and US (Sunday=0) conventions. Uses datetime.weekday() as the base and adjusts for US convention when requested.

Parameters:

Name Type Description Default
start_day str

Week start convention. Accepted values: 'european' (Monday=0, ..., Sunday=6) or 'us' (Sunday=0, Monday=1, ..., Saturday=6). Defaults to 'european'.

 'european'

Returns:

Name Type Description
int int

The current day of the week as an integer (0-6).

Raises:

Type Description
ValueError

If 'start_day' is not 'european' or 'us'.
Usage Example

from shortfx.fxDate.date_sys import current_weekday_number current_weekday_number(start_day='european') # For Friday 4 current_weekday_number(start_day='us') # For Friday 5

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_weekday_number(start_day: str = 'european') -> int:
    """Retrieves the current day of the week as a number.

    Description:
        Returns the current weekday as an integer, supporting both European
        (Monday=0) and US (Sunday=0) conventions. Uses datetime.weekday()
        as the base and adjusts for US convention when requested.

    Args:
        start_day (str): Week start convention. Accepted values:
                        'european' (Monday=0, ..., Sunday=6) or
                        'us' (Sunday=0, Monday=1, ..., Saturday=6).
                        Defaults to 'european'.

    Returns:
        int: The current day of the week as an integer (0-6).

    Raises:
        ValueError: If 'start_day' is not 'european' or 'us'.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_weekday_number
        >>> current_weekday_number(start_day='european')  # For Friday
        4
        >>> current_weekday_number(start_day='us')  # For Friday
        5

    Cost: O(1)
    """
    if start_day not in ['european', 'us']:
        raise ValueError("Invalid value for 'start_day'. Must be 'european' or 'us'.")

    # Get the current weekday using the default datetime.weekday() method,
    # which returns Monday=0, ..., Sunday=6 (European standard).
    current_weekday_index = datetime.now().weekday()

    # If the US convention is requested, adjust the index.
    # The US convention starts with Sunday as 0. Since Python's weekday()
    # returns Sunday as 6, we shift it to 0 by adding 1 and taking modulo 7.
    if start_day == 'us':
        return (current_weekday_index + 1) % 7
    return current_weekday_index

current_year() -> int

Gets the current year.

Description

Returns the year component from the current system date.

Returns:

Name Type Description
int int

The current year as a four-digit integer.
Usage Example

from shortfx.fxDate.date_sys import current_year year = current_year() print(year) # Output varies 2026

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def current_year() -> int:
    """Gets the current year.

    Description:
        Returns the year component from the current system date.

    Returns:
        int: The current year as a four-digit integer.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import current_year
        >>> year = current_year()
        >>> print(year)  # Output varies
        2026

    Cost: O(1)
    """
    # Extract the year attribute from the current datetime.
    return datetime.now().year

get_local_now(tz: Optional[str] = None) -> datetime

Gets the current date and time in a specified timezone.

Description

Returns a timezone-aware datetime object representing the current time in the specified timezone. If no timezone is specified, returns the current time in the system's local timezone. Timezone names must follow the IANA timezone database format (e.g., 'America/New_York', 'Europe/Madrid').

Parameters:

Name Type Description Default
tz Optional[str]

IANA timezone name (e.g., 'America/New_York'). If None, uses the system's local timezone.

 None

Returns:

Name Type Description
datetime datetime

A timezone-aware datetime object in the specified timezone.

Raises:

Type Description
TypeError

If 'tz' is not a string when provided.
ValueError

If 'tz' is not a valid IANA timezone name.
Usage Example

from shortfx.fxDate.date_sys import get_local_now tokyo_now = get_local_now('Asia/Tokyo') print(tokyo_now.strftime('%Y-%m-%d %H:%M:%S %Z%z')) 2026-01-03 23:30:45 JST+0900

local_now = get_local_now() print(local_now.strftime('%Y-%m-%d %H:%M:%S %Z%z')) 2026-01-03 15:30:45 CET+0100

ny_now = get_local_now('America/New_York') print(ny_now.strftime('%Y-%m-%d %H:%M:%S %Z%z')) 2026-01-03 09:30:45 EST-0500

Cost: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def get_local_now(tz: Optional[str] = None) -> datetime:
    """Gets the current date and time in a specified timezone.

    Description:
        Returns a timezone-aware datetime object representing the current time
        in the specified timezone. If no timezone is specified, returns the
        current time in the system's local timezone. Timezone names must follow
        the IANA timezone database format (e.g., 'America/New_York', 'Europe/Madrid').

    Args:
        tz (Optional[str]): IANA timezone name (e.g., 'America/New_York').
                           If None, uses the system's local timezone.

    Returns:
        datetime: A timezone-aware datetime object in the specified timezone.

    Raises:
        TypeError: If 'tz' is not a string when provided.
        ValueError: If 'tz' is not a valid IANA timezone name.

    Usage Example:
        >>> from shortfx.fxDate.date_sys import get_local_now
        >>> tokyo_now = get_local_now('Asia/Tokyo')
        >>> print(tokyo_now.strftime('%Y-%m-%d %H:%M:%S %Z%z'))
        2026-01-03 23:30:45 JST+0900
        >>> 
        >>> local_now = get_local_now()
        >>> print(local_now.strftime('%Y-%m-%d %H:%M:%S %Z%z'))
        2026-01-03 15:30:45 CET+0100
        >>> 
        >>> ny_now = get_local_now('America/New_York')
        >>> print(ny_now.strftime('%Y-%m-%d %H:%M:%S %Z%z'))
        2026-01-03 09:30:45 EST-0500

    Cost: O(1)
    """
    if tz is None:
        # Si no se especifica una zona horaria, se devuelve la hora actual
        # localizada en la zona horaria del sistema.
        return datetime.now().astimezone()
    else:
        # Si se especifica una zona horaria, se valida y se usa.
        if not isinstance(tz, str):
            raise TypeError("Input 'tz' must be a string representing a timezone.")
        try:
            # Cargar la información de la zona horaria IANA.
            target_tz_info = zoneinfo.ZoneInfo(tz)

            # Obtener la hora UTC actual. Es el punto de partida más seguro para conversiones.
            # Se usa zoneinfo.ZoneInfo('UTC') para consistencia.
            utc_now = datetime.now(zoneinfo.ZoneInfo('UTC'))

            # Convertir la hora UTC a la zona horaria objetivo.
            return utc_now.astimezone(target_tz_info)
        except zoneinfo.ZoneInfoNotFoundError:
            # Capturar errores si el nombre de la zona horaria no es válido.
            raise ValueError(f"Invalid or unknown timezone: '{tz}'.")
        except Exception as e:
            # Capturar cualquier otro error inesperado.
            raise RuntimeError(f"An unexpected error occurred while getting local time for timezone '{tz}': {e}")

seconds_since_midnight() -> float

Returns the number of seconds elapsed since midnight of the current day.

Description

Equivalent to VBA's Timer function. Useful for benchmarking, daily scheduling offsets, or computing elapsed durations within a day.

Returns:

Name Type Description
float float

Seconds (with fractional microseconds) since 00:00:00 today.
Example

from shortfx.fxDate.date_sys import seconds_since_midnight secs = seconds_since_midnight() 0 <= secs < 86400 True

Complexity: O(1)

Source code in shortfx/fxDate/date_sys.py 
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def seconds_since_midnight() -> float:
    """Returns the number of seconds elapsed since midnight of the current day.

    Description:
        Equivalent to VBA's Timer function. Useful for benchmarking, daily
        scheduling offsets, or computing elapsed durations within a day.

    Returns:
        float: Seconds (with fractional microseconds) since 00:00:00 today.

    Example:
        >>> from shortfx.fxDate.date_sys import seconds_since_midnight
        >>> secs = seconds_since_midnight()
        >>> 0 <= secs < 86400
        True

    Complexity: O(1)
    """
    now = datetime.now()
    midnight = now.replace(hour=0, minute=0, second=0, microsecond=0)
    return (now - midnight).total_seconds()