For setting sunrise/sunset times on the outdoor watchface of your Spartan, you need to activate the GPS as sunrise/sunset parameters are based on your location.
How to activate GPS on your Spartan:
1. Go outside
2. Open the Navigation settings
3. Select Your location. When the coordinates appear, your watch has a GPS fix.
4. Cancel saving your location.
5. Go back to the watchface. The sunrise/sunset times should be updated with actual values, if the GPS activation was successful.
Note:
Learn more about how to set sunrise and sunset alarms in the user guide of your Spartan.
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Suunto Spartan Trainer Wrist HR
Suunto Spartan Ultra
Suunto Spartan Sport Wrist HR
Suunto Spartan Sport Wrist HR Baro
Suunto Spartan Sport