Running out of time

I'm new to this, but two of my three games I have played have been lost as a result of me running out of time.  This is despite the fact that I was clearly taking less time over moves than my opponent.  Should I be stopping a clock or something - like in the traditional game?  But I couldn't see a button anywhere.

Thanks

The clock automatically stops when the move is played. However, if you have a lot of lag on your connection, your moves can actually take longer than they appear to take on your client. You could also be suffering from some minor disconnects.

https://support.chess.com/customer/en/portal/articles/1444918-my-internet-connection-is-fine---why-am-i-getting-disconnects-

Another thing to look into is the live connection settings if you are on the website:

https://www.chess.com/blog/News/how-to-adjust-your-live-chess-connection

Thanks for that.  Keeping my eye on the clock now.  Just won my first game when my opponent ran out of time.

I had the same problem (and still do run out of time occasionally). You get used to it, though, and I have found that playing 5+5 or 3+2 games has sharpened my awareness of time, without stressing me too much! Good luck.