Got my 645M today and have been playing with it. I like the sunrise/sunset data field but, for some reason, the sunset time on the watch is an hour later than the actual sunset. I've looked around but don't seem to be able to change this either on the watch itself or in the Garmin Connect app on my iPhone. I'm in Ireland, for what that's worth. Any ideas?
This has been a known issue on some other Garmin models, and it was recently fixed in firmware updates. (Though that problem only seemed to affect users in New Zealand.)
A word of caution: It is really nice to be able to see sunset and sunrise time on your watch face. But it is quite power hungry, at least on my F5X+. So you may want to use the sunset/sunrise widget instead to save some fuel.
I resolved it by going to Settings—>System—>Time—>Sync with GPS. The problem was that I hadn't turned on the GPS, I reckon, as it's a really lousy day here and my first run with the watch was on a treadmill. :eek:
