I am going to try and explain it to you step by step & I hope it helps:
1) Go to time (not World Time but "Time") your normal time range
2) Once in time, to know it you are there, if you click start you should see your date/month.
3) Click Adjust & once it starts "blinking" like a yellow traffic light when it says "precaution" you NOW click mode & go through date, month, time etc..UNTIL you reach "year".
4) Once you see its blinking, and the 2022 or 2020 sign is there, the NEXT time you click mode, is the MUTE mode.
5) If you want to MUTE it, you click START, and a small thin line should appear below the second date showing you have MUTED your watch.
6) The same procedure should be done to UNMUTE your watch.
7) Once you have muted it you click adjust & you have finished the process.

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