

all the time 735x change my time zone!
i have diferent day and time on clock
The time and date on the watch are set by the GPS satellites so it will be correct as long as you do GPS activities regularly.
What timezone is changed? On the phone? That is a setting in the phone settings. The watch can't change the timezone on the phone.
Have you enabled "Set automatically" in the phone settings? https://support.apple.com/en-us/HT203483