code: def get_seconds_until_next_day(now=None):
      
      if now is None:
          now = arrow.utcnow()
      return (now.ceil('day') - now).seconds
docs: Returns the number of seconds until the next day (utc midnight). This is the long-term rate limit used by Strava.
      :param now: A (utc) timestamp
      :type now: arrow.arrow.Arrow
      :return: the number of seconds until next day, as int