# Pastebin kV383iEF
lanf0n: 確定 %p 不能用 
print datetime.strptime('2014/08/06 23:04', '%Y/%m/%d %H:%M').strftime('%s')   => OK
print datetime.strptime('2014/08/06 PM 11:04', '%Y/%m/%d %p %H:%M').strftime('%s')  => FAIL