There is a rule for losing minutes, a rule for how many seconds per move, and a rule for adding seconds.
The voice in the loss mode is played every hour to five minutes, one minute, thirty seconds, twenty seconds, ten seconds like "how many minutes are left". From 10 seconds, it will flow like "10, 9, 8, 7, 6, 5, 4, 3, 2, 1, end".

The voice of the rule of one move and how many seconds flows like "20 seconds, 10 seconds, 9, 8, 7, 6, 5, 4, 3, 2, 1, end".

The voice of the addition rule is played like "1 minute, 10 seconds, 5, 4, 3, 2, 1, end".