Feature request: incorporate information from pytz modle into parser

[drevicko]

There is a handy package called pytz with lots of handy information about timezone strings from around the world.

It'd be great if this information could be incorporated into the parser.parse() method in some easy and intuitive way. The idea is that parsing a string like 'November 14, 2014, 11:59pm EST' would end up with a datetime object with timezone information for 'EST' (I believe that's american eastern standard time).

Currently, as far as I can tell, you need to explicitly specify a dictionary containing {'EST': whatever_offest_EST_has}, which is rather tedious and time consuming.