util.py 文件源码

def timezone_from_str(tz_str):
    """
    Convert a timezone string to a timezone object

    :param tz_str: string with format 'UTC±[hh]:[mm]'
    :return: a timezone object
    """
    m = re.match(r'UTC([+|-]\d{1,2}):(\d{2})', tz_str)
    delta_h = int(m.group(1))
    delta_m = int(m.group(2)) if delta_h >= 0 else -int(m.group(2))
    return timezone(timedelta(hours=delta_h, minutes=delta_m))