As for the topic – I played with Chinese players, and they have a program that records videos of all games (I understand that it records both my moves and the opponent's moves – probably capturing the fog of war). This program also calculates the time, showing how long each player spent on the game. For example, my game with the Chinese players lasted 80 minutes for me and 100 minutes for the Chinese player.
I got this program, but I haven't figured it out yet/I'm sick – and it's in Chinese, so I'll probably have to struggle with the translation.