This depends on your phone settings and activity trackers. Some phones and activity trackers will adjust your phone to the local time of your destination. This may cause you to lose or gain hours in a game day. StepBet players should plan accordingly before traveling.
For example, imagine that you travel from San Francisco to New York, losing 3 hours. If your phone or activity tracker automatically adjusts to the local time, you would have 3 fewer hours to complete your goals for the day - and should plan accordingly to make sure you get your steps! If your phone or activity tracker does NOT adjust to the local time, you would still have until midnight San Francisco time to complete your goals.