1 x AG10/LR1130 button cell battery (included in most retail packages)
Look for an A (AM) or P (PM) indicator text next to the numbers.
Press the button while the seconds are flashing to instantly reset the counter to 00 . Step 3: Change the Minutes
Press the D (Date) button to advance the minutes to the current time.
The device typically uses three buttons (often labeled for Mode, S for Set, and D for Date/Adjust) to navigate settings. Time and Date Setting :
Press a final time. A small bar or indicator line will flash along the top or bottom of the screen over the weekday abbreviations (MO, TU, WE, TH, FR, SA, SU). Tap START until the bar rests over the correct day. Step 7: Save and Exit