Formatted TZ offset by name

gistfile1.py

import datetime

import dateutil.tz

import pytz


def get_formatted_tz(zone):
    """Returns +/-HH:MM formatted time zone offset.

    ``zone`` is a time zone like 'America/Chicago'.
    """

    localtz = pytz.timezone(zone)
    tz_offset = localtz.utcoffset(datetime.datetime.now())
    tz_hours = str((tz_offset.days * 86400 + tz_offset.seconds) / 3600)
    return tz_hours[0] + tz_hours[1:].rjust(2, '0') + ':00'