This game steals playtime
Your opponents can't impact your time.
You're either seeing a lot of lag or getting disconnectd. Here are some help articles that might help minimizing issues.
https://support.chess.com/article/4720-online-chess-performance-optimizations
https://support.chess.com/article/213-how-do-i-fix-my-disconnect-lag-issues
https://support.chess.com/article/423-why-did-the-clock-times-suddenly-change-the-clocks-seem-broken