How to modify the time of perpetual calendar?

The method of adjusting the calendar time is as follows:

1. The button for adjusting time is on the back. Turn over the perpetual calendar.

2. There are four buttons in the lower left corner of the back.

3. Click the button with the double arrow next to Settings.

4. Press the button, and the year number of the electronic clock will start flashing. When the number flashes, Bian Xiao will take photos.

5. Press it again, and it will be the turn for the month number to flash. In this way, select the year, month, day and hour in turn. Press the number to change and start flashing. What Bian Xiao wants to change is the "minute" in an hour.

6. Then press the+button, and "Modify/Alarm" will be displayed next to it. (Pressing the "+"key can only add, but not subtract, just like if my 59 is changed to 49, I can only add 60, 1, 2, 3 ...)

7, so it is adjusted, and it is the same adjustment method to adjust the date or day of the week.