Time clock

Many times I have been playing and run my oppenents clock out. All the sudden up to 4.5 seconds reappears on their clock. Anyone have this problem? Also I find mt PC slower in the morning and the late afternoon. causes me to loose games by 15 seconds when I never quite moving and in fact was ahead od the clock. Anyone know why? Nancy

After you play your move, I'm guessing on your screen your opponent's clock starts ticking down.  While your move travles through the internet though, your opponent may not have seen it yet due to lag.  When he sees your move, his clock starts ticking down (and will be different from his clock on your screen).  After he makes his move it comes with a time stamp and when both of these arrive at your computer his clock is adjusted so that only the real time he actually used to contemplate his move is taken off.  Because his clock on your screen started before he saw your move, this means time is added.

This info, but in more detail/easier to understand, should be in the FAQ section.

I can under stand a slight adjustment but why is it made a few seconds after his clock shows me no time left and then the 4.5 seconds ( last time it happened) appear. I think it should be done during the game not at the end when you feel the game is over and your no longer thinking about the next move? Also is 4.5 seconds quite a large addition at the end? The next game I was up about 26 seconds and my opponent thinking about avoiding a checkmate. Next thing I knew the clocks reversed. PC was acting strange and logging in was tough. Clocks were reversed and we had each others time. Last question - does anyone notice a difference in computer speed during certain times of the day. I played 10 games yesterday morning and checked the king several times and still lost by 15 seconds and always kept moving. Lost 9 of 10 and decided the server was slower. Later in the day I played and went from a 895 to a 1072 really fast with several wins over 1100+ players and 2 over 1200+. No difference in time of my move or opening. Swing was probably about 12 seconds. Anyone have this problem? Thanks to all.