The reset time for watering is 00:00 (GMT+0).
If you are unable to water your tree after 00:00 (GMT+0), it may be due to the following reasons:
・You have been on Meta Livly since before 00:00 (GMT+0), and your status has not been refreshed. In which case, tap the Refresh icon at the bottom-right of your island screen.
・You do not have enough Hom Power.
・Your fruit is ready for harvest.