The time control for each game is 120 minutes for the first 40 moves, 60 minutes for the next 20 moves and then 15 minutes for the rest of the game with an increment of 30 seconds per move starting after move 61.
time control system at game 9 yesterday
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There are multiple time controls for a single game. All games used to be like this, and so if they ran too long you would have an adjourned game to be resumed the next day. They don't do this anymore because players could use computer analysis to help analyse over night.
I don't know the specific time controls for this match, but for example it's common to have something like 2 hours for the first 40 moves, then 1 hour for the next 20-30 then 30 minutes for the rest of the game.
So at move 39 here comes the TC (time control), might as well use up the last bit of time to be sure (often errors are committed right before reaching the next TC, or right after because they're not sure if it was move 40 or 41 in the scramble). Then after carefully choosing, he plays the move and also gets an additional 60 minutes added. If the game lasts to move 60 (and if there's a third TC) then another predetermined amount is added.
Isnt it a bit fishy that adjuornments werent stopped until programs became strong enough to pretty much equalize the ability to analyze adjourned games for top players ? I mean when the former USSR had a HUGE advantage in this area adjournments were common place. When programs destroyed that advantage... no more adjournments. The same thing with the champion keeping the title in the case of a tie has happened it seems to me. Oh, and did the automatic rematch clause of a dethroned WC ever benefit anyone but Botvinnik ? 
Reb wrote:
Isnt it a bit fishy that adjuornments werent stopped until programs became strong enough to pretty much equalize the ability to analyze adjourned games for top players ? I mean when the former USSR had a HUGE advantage in this area adjournments were common place. When programs destroyed that advantage... no more adjournments. The same thing with the champion keeping the title in the case of a tie has happened it seems to me. Oh, and did the automatic rematch clause of a dethroned WC ever benefit anyone but Botvinnik ?
Hmm... good points 
interesting.
hi, i'm pretty sure you will laugh at me ;) but anyways:
i don't understand wow the time system works on the world champion matches (neither do i know how it works at normal tournaments)
yesterday i watched my first live game (AWESOME)... and at one point in the endgame phase anand had only 3 minutes left and it freaked me out why he didn't move quicker... then all of a sudden the clocks were added another 1 hour. why is that? i was like *huuughhhh??* lol