We are a team of 10 people, and one of them is leaving early. They are supposed to work 8:00 hours like everyone else but they are working about 7:30.
Our manager is out of office till next month.
Do I have any moral responsibility to inform my manager about this action of my colleague?
Update
Thanks everyone for positive feedback. I will take the advise and will stay quiet.
BUT I still don't believe in people leaving early regardless of any reason unless arrangement are or will be made to cover the time. Discipline is a much needed skill these days...
In my case the person is well under performing and for years... and I don't believe our manager is monitoring progress of any of the employee at all in sense of time keeping or day to day work.