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Instructions for use※Press the A button to light up the time, press the A button again to display the date; ※Long press the A button, after a few seconds, the hour jumps, press the A button to adjust the hour (add 1 hour for each press); Note: The small dot in front of the hour represents morning and afternoon, the dot represents the afternoon, and the dot without dot represents the morning ※After adjusting, long press A and hold, after a few seconds the year starts to beat, press the A key to adjust the month; ※After adjusting the time, press and hold the A button, after a few seconds, the year starts to beat, press the A button to adjust the year; Note: The upper form of the year is Y, that is, the initial letter of the year YEAR ※After adjusting the year, press and hold the A button, after a few seconds, the month starts to beat, press the A key to adjust the month; ※ Adjust the month, long press the A button, after a few seconds, the number of the date jumps, press the A button to adjust the date. Note: When switching the time, be sure to do it when the light is still flashing, if it is slow and the light goes out, then it must be readjusted. In addition, before the time light display or before the light is extinguished, it will be in the 18:88 string of numbers, this is the test lamp function, all lights are lit again, to see if there is any damage, etc., this is a normal phenomenon.