clock cheating:: I am about to give up my membership of chess.com

Tony, relax. This behavior is normal. System accounts for geographical lag. Ping time is substracted from the clock, both yours and your opp.

Tony, relax. This behavior is normal. System accounts for geographical lag. Ping time is substracted from the clock, both yours and your opp.
This man speaks the truth

Relax Tom, doesn't payout if you get a headache because of this. Do you mean moving more than one move at the same time and you are still way behind? The server needs to synchronize both player, depending on their location, speed, latency time it can be difficult to make it as fair as possible. So it is not necessarily kind of cheating rather the problem of distributed systems working together.