How to get Sunrise/Sunset time on apple watch to work again?

Hey there ctdv, 

According to Apple Watch faces and their features sunrise and sunset are part of the World Clock complication. To help the community ensure you're moving in the right direction:

• What happens when you attempt to add this complication?
• What version of watchOS are you using?
• What version of iOS are you using?

If not the most recent versions of both, you'll need to update both devices.

• Update your Apple Watch
• Update iOS on iPhone

If already updated, restart both your iPhone and Apple Watch, then check for the same issue. We look forward to hearing back from you.

Have a good one!