A Game-second or just "second" is 60 Game-ticks.
- Game-minute: 60 ticks * 60 (= 60 seconds)
- Game-hour: 60 ticks * 60 * 60 (3600 seconds)
It normally makes no sense to measure things in game-hours, because a game hour is longer than a game-day!
Exception: the length of a game is normally measured in game-hours, because the length of a game day can be modified!