Can't parse time format properly

[eastein]

creating new irc connection
Traceback (most recent call last):
File "./dudemon", line 215, in handle
arrivals = [arr for arr in stations[0].arrivals() if arr.line in lines]
File "/home/eastein/git/ordat/cta/apis.py", line 151, in arrivals
return api.arrivals(mapid=self.id)
File "/home/eastein/git/ordat/cta/apis.py", line 347, in arrivals
tmst = Arrival.totime(data['tmst'])
File "/home/eastein/git/ordat/cta/apis.py", line 244, in totime
return time.strptime('%s CDT' % s, '%Y%m%d %H:%M:%S %Z')
File "/usr/lib/python2.7/_strptime.py", line 467, in _strptime_time
return _strptime(data_string, format)[0]
File "/usr/lib/python2.7/_strptime.py", line 325, in _strptime
(data_string, format))
ValueError: time data u'20140914 15:38:56 CDT' does not match format '%Y%m%d %H:%M:%S %Z'