Why is the perpetual calendar time inaccurate?

Reason: wrong setting. Solution: Reset to solve this problem.

1. First, turn the calendar over.

2. Next, press the "Set" button (enter the time setting state, and the year "flashes"; Press "Up" or "Down" to change the year;

3. After modification, press "Settings" to move the flicker to "Month" in the Gregorian calendar, and press "Move Up" or "Move Down" to modify the month. Please note that there are two arrows on the button, and then the year number of the electronic clock will start flashing.

4. Then click on the flashing of the monthly attack number in order to select the time in turn;

5. Then press the "+"button next to the "Modify/Alarm" button. Just press the "+"key to add without subtraction.

6. Finally, press the "Reset" button and the time will be set.