No problem, I understand the difficulty related to the server ^^
What I was wondering is in this kind of problem have a solution like on Ogame?
For example a person who is waiting for his fleet at a specific time (but the server is offline) and who is not connected to the recovery of the server may be raid his fleet.
A steep 24 hour blocking solution was a solution for, for example, a loss of the server for a minimum of 1 hour.