def time_to_str(total_time):
    (hours, rem) = divmod(total_time, 3600)
    (minutes, seconds) = divmod(rem, 60)
    return '{:0>2}:{:0>2}:{:05.2f}'.format(int(hours), int(minutes), seconds)
def time_to_str(total_time):
    (hours, rem) = divmod(total_time, 3600)
    (minutes, seconds) = divmod(rem, 60)
    return '{:0>2}:{:0>2}:{:05.2f}'.format(int(hours), int(minutes), seconds)