How to restrict user from selecting future date and time from zoom out option? Panel does not show any data on selecting future date and time.
You can give users viewer role. That way, they can still zoom out, but they can not save that view. See https://play.grafana.org/d/000000012/grafana-play-home?orgId=1. You can access it as viewer and you can zoom out, but it is not going to affect anyone else. Plus, when you access it again, it is going to be set to the correct time.