If the opponent's timer has stopped (not at 00:00), it means the opponent is in a battle, and that's the only reason.
If it's ticking, it means they're not. If a disconnect occurs during a battle, the timer will continue to be paused; if it's not during a battle, the timer will tick.
If the opponent's timer doesn't appear when their turn is passed, it means they haven't taken their turn yet.
Now it will be possible to quickly identify those who are asleep at the keyboard – and go to sleep myself :)
