Exception while converting string to datetime in python on GAE with timezone?

I am getting this exception

time data did not match format:  data=19:51:06 Jan 17, 2011 PST  fmt=%H:%M:%S %b %d, %Y %Z

for following code

datetime.strptime(parameters['19:51:06 Jan 17, 2011 PST'], "%H:%M:%S %b %d, %Y %Z")

in python code running on Google app engine.

How to modify the forma开发者_JS百科tter so that it works?

Look for the python docs for datetime.strptime [1]. They say it uses time.strptime internally, so let's check there [2].

Support for the %Z directive is based on the values contained in tzname and whether daylight is true. Because of this, it is platform-specific except for recognizing UTC and GMT which are always known (and are considered to be non-daylight savings timezones).

You should go and check out the excellent pytz library [3].

[1] http://docs.python.org/library/datetime.html#datetime.datetime.strptime

[2] http://docs.python.org/library/time.html#time.strptime

[3] http://pytz.sourceforge.net/