- date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter)
- dt = datetime.datetime.strptime(date_str, date_format) - timezone
- return calendar.timegm(dt.timetuple())
+ try:
+ date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter)
+ dt = datetime.datetime.strptime(date_str, date_format) - timezone
+ return calendar.timegm(dt.timetuple())
+ except ValueError:
+ pass