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Get a dictionary mapping timezone abbreviations to names, using pytz
""" Make a dictionary that maps timezone abbreviations to timezone names.
The timezone_lookup module supplies a single dictionary, timezone_lookup. For example,
>>> timezone_lookup['EST']
'US/Michigan'
"""
from datetime import datetime
import pytz
timezone_lookup = dict([(pytz.timezone(x).localize(datetime.now()).tzname(), x) for x in pytz.all_timezones])
@cserpell

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commented Sep 10, 2014

I found this searching a good way to get such a dictionary. Your solution actually does not work well, because of DST. It gets current available time zones in the world, but not time zones during other summer / winter season. You won't get all string that datetime may use.

@cheniel

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commented Oct 14, 2014

Not discounting the issue mentioned above, but you can combine this dictionary with the parsing method outlined here (replace TZINFOS) if you make a slight modification to line 12 to be:

tz_lookup = dict([(pytz.timezone(x).localize(datetime.now()).tzname(), pytz.timezone(x)) for x in pytz.all_timezones])
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