Rating Adjustment for Daily Games

Quick question about the rating adjustment for Daily Games. When you start a game against someone, is the rating adjustment for this game set at time of the beginning of the game or at the moment when the game ends. Let say you have X rating at the beginning of the game and it shows certain rating changes for win, loss or draw. Will it stay the same even when the game goes on for a long time and my rating changes between start and end (lets say there were several shorter daily games that changed my rating by a good amount) or is it dynamic and can change as my rating changes before the game ends? 

The adjustment is done based on the ratings when the game ends. If you happen to have a long game, the provisional adjustments you can see on the info tab can change (even a lot if one of the players has only a few games played).