query = compat_parse_qs(component)
if start_time is None and 't' in query:
start_time = parse_duration(query['t'][0])
+ if start_time is None and 'start' in query:
+ start_time = parse_duration(query['start'][0])
if end_time is None and 'end' in query:
end_time = parse_duration(query['end'][0])