def str_timedelta(td: timedelta) -> str:
td = str(td)
# Remove ms
# 0:01:40.123000 -> 0:01:40
if '.' in td:
td = td[:td.rindex('.')]
# 0:01:40 -> 00:01:40
if td.startswith('0:'):
td = '00:' + td[2:]
return td
