import datetime
def milliseconds_since_epoch(dt_object: datetime.datetime) -> int:
"""converts a datetime object to milliseconds since 1970, as an integer
Arguments:
----------
dt_object {datetime.datetime} -- Python datetime object.
Returns:
--------
[int] -- The timestamp in milliseconds since epoch.
"""
return int(dt_object.timestamp() * 1000)
def datetime_from_milliseconds_since_epoch(ms_since_epoch: int, timezone: datetime.timezone = None) -> datetime.datetime:
"""Converts milliseconds since epoch to a datetime object.
Arguments:
----------
ms_since_epoch {int} -- Number of milliseconds since epoch.
Keyword Arguments:
--------
timezone {datetime.timezone} -- The timezone of the new datetime object. (default: {None})
Returns:
--------
datetime.datetime -- A python datetime object.
"""
return datetime.datetime.fromtimestamp((ms_since_epoch / 1000), tz=timezone)
