utils.py 文件源码

def to_utc_timestamp(date_time):
    """Convert a naive or timezone-aware datetime to UTC timestamp.

    Arguments:
      date_time (:py:class:`datetime.datetime`): The datetime to
        convert.

    Returns:
      :py:class:`int`: The timestamp (in seconds).

    """
    if date_time is None:
        return
    if date_time.tzname() is None:
        timestamp = date_time.replace(tzinfo=timezone.utc).timestamp()
    else:
        timestamp = date_time.timestamp()
    return int(round(timestamp, 0))