The countdown start time can be set in 1-second units up to 24 hours.

1.Hold down (A) for about two seconds.

This causes the hours digit to flash.

2.Use (D) and (B) to change the timer hours setting.

3.Press (C).

This causes the minutes digits to flash.

4.Use (D) and (B) to change the timer minutes setting.

5.Press (C).

This causes the seconds digits to flash.

6.Use (D) and (B) to change the target time seconds setting.

7.Press (A) to exit the setting screen.