Won on time?

I just had a game where the opponent won on time, which was not accurate, I made the move, the player had 1 tenth of a second left, their time hit zero, I had about 3 seconds, dropped my move, and when their move come up I get told they won on time and they ended back up with 1 tenth of a second, and it had nothing to do with my connection as it showed I had excellent connection, so how does one get time like that?

The clock on the client is not the official clock. The Live server keeps the official time and updates the client clocks when moves are received and the game ends.

There are different things that can happen. Short disconnects, lag between the client and the Live server are the main ones.  Without a link to the exact game, it is kind of hard to give much more information than that. I see one recent game where you lost on time and your opponent had 0.1 seconds; but in that one you only had 0.9 left.

Thanks for that info, I had an idea I was ahead and I am pretty sure I moved a piece at 0.1ish, expecting a win on my end for time, I will keep this info in mind. (it probably explains why there is a slight delay when a game ends to popup and notify who the winner is when I play)

I presume you are talking about this game: https://www.chess.com/livechess/game?id=1985265683

If you notice, in that game, the last move made was by your opponent: Bxc1.  It seems that you made your move (Qxc1, I'm guessing) on your client, but that move never made it to the server.  As far as both the server and your opponent were concerned, *you* were the one that ran out your clock.

The client made the move but the server never received it. You apparently were disconnected from the Live server process.

No I waited with him, pleading for him to move.  He wanted a draw.  Read the chats between us.   Folks are gaming the server?

We can't read the chats as that is private information.  Some staff might be able to (in order to be able to confirm allegations of abuse, for example), but the rest of us can't.

Also, just because chat messages are getting through, that doesn't necessarily mean the moves are.  I don't know a lot about how computer networking works, but I know enough to realize there is a whole lot about it that I don't know. 

Chat sending and move sending might utilize different software on your computer, might be sent out over different ports (whatever that means, I just know different programs use different "ports" and that firewalls block some of those so that malicious programs or incoming attacks can't use them), might use different paths to get to chess.com from your computer (it doesn't just go directly from your computer to chess.com, there are many intermediate hops and if one of them is down or slow it can cause problems even if your connection to your isp is good), and might never enter the same servers at chess.com (there may be separate chat servers and live chess servers, for example). 

There's a lot that's invisible to the general internet user, and so there are a lot of factors that might go into the problems you're seeing - very few of them, if any, would be something your opponent would have any kind of control over or even have the ability to "game," so to speak.

I'm pretty sure chats are not recorded. But the game log clearly shows that the move you made wasn't received by the server, or was received after time was out. It may be possible the chat channel and Live server process are separate and being attached to chat and disconnected from the game may happen. Wold need staff to see if that could be possible.

You might open a ticket and see if staff can shed any light on it.

https://support.chess.com/customer/portal/emails/new

Thanks for your suggestion

I have lost several matches where the opponent "won on time". I have taken a lot of his pieces including his queen. How can this be a win for him/her and a loss for me! It's so unfair! How can I avoid this?