I just lost a game to a stupid move... I admittedly played a move that would lead to checkmate in 2 but since my opponent only had 5 seconds I very well could have been saved by the bell... For some reason after my move 10 seconds were added to his time giving him 15 seconds... He won with a few seconds to spare which means he would have potentially lost if the time hadn't been added. This isn't the first time I've seen mysterious time slippages so I ask has anyone else had this experience and what is being done to improve the time clock?

link to game please?

http://www.chess.com/livechess/game.html?id=36377945

I think I'm had a similar problem. I just played somebody and his clock ran to 0.00 multiple times during the game, but once he made his move his clock jumped back to 40 seconds or added time onto his clock. Could it have something to do with the fact that he had a poor connection? Either way he should have lost the game due to time running out far sooner than he actually did. The game was not set to add time after a move and I certainly didn't gain seconds after moving. Could anybody shed some light?

I have played thousands of games here. Today for the very first time I noticed my opponent's time was running significantly slower than mine. Anybody else with a similar observation?

Yes, I have seen this a few times. Its inexplicable but the site cals it lag. Not sure how to check it since it defies any real-time clock you measure it against.