Some night-owl players change time zone simply because they play at night and do not want the island to always be dark. That is not the same goal as farming stock.
There is also a player route that claims to refresh morning market and clothing stock without the usual clock penalty. The steps are: shop in your current time zone first, save and exit, disconnect from the internet, turn off automatic time sync, then change only the time zone, not the date or region.
After that, choose a time zone where the local time has already passed the daily reset, usually discussed as around 5:00. Enter the game, check the food shop, clothing shop, and morning market, buy what you want, then save and exit again before changing zones.
The important detail in that route is not "set the date forward." It is moving through time zones while keeping the new login time later than your last save time. One player example was saving around 14:00, then only entering a time zone where local time was still after 14:00. If you continue rolling through time zones, the next zone still needs to be past reset and should not put you earlier than the save you just made.
Keep in mind this is still a player-experience method, not an official promise. Some players say it is stable, while others say changing time zone can still trigger a warning or pause item refreshes for a day. If you switch time zones repeatedly, you especially need to accept the risk yourself.