This is how I updated the date manually on my gear s3 sport: turned off bluetooth from phone to disocnnect watch from phone the watch conneted to my wifi but i dont believe it is necesary to connect the watch to wifi. went to settings > general management > date time if your the watch is connected to the phone the "date and time" option is disabled, it the watch is not connected to a phone the "date and time" option is not disabled at that point the user can tap on the "date and time" option and set the time manually.   Hope this helps somebody ... View more