Positive.Server reset is an important event. Sometimes things get messed up because of it. Adding this will make it easier for players to understand why this messed-up stuff occurred. And to be informed when is the next server reset; so they can prepare themselves earlier.
I think that the overlap between people who don't know when the server reset and the people who know about B > event times is pretty small. For that reason I am negative I think a better solution would be to add one of those top screen "helpful info" messages that says the server resets every day at 11PM British time.
But some people have those disabled, so they won't know about the reset time.