The 6th game alone took longer than The Queen's Gambit.

(This is probably what you meant, but in chess a game means a single contest, while a match always means a series of games between two players or two teams).

Thanks for pointing this out! Game 6 started at 4:30pm local time and ended at 12:17am, making the game length 7 hours and 47 minutes total. It was the first time since adjournments were abolished in the 90s that a championship game started on one day and ended on another.

Is there a time limit for each player?

It varies a bit, but in this case[1] they had two hours each to reach 40 moves, without additional time per move. After move 40 then they got an additional hour each until move 60. After move 60 they got 15 minutes each, as well as each move now giving them 30 seconds.

If the player runs out of time they lose.

[1]: https://www.chess.com/article/view/world-chess-championship-...

> may not realise how much time is spent at the board

Or not spent at the board - Nepo seemed to prefer the side room ;-)