Press the ":00" button, thereby setting the minutes. If you need to set from 0 to 29 minutes, you need to press the V (M) button, and if from 30 to 59 minutes, then press the A (H) button.
When you press "H", the required hour of the day is set, and it can be entered in the same way as the minutes.
(The text is taken from the specified website www.toyotaman.ru)