Automatically Change Your Apple Watch Face by Location or Time

Using the power of iOS Shortcuts, you can set your Apple Watch’s face to change automatically based on the time or your current location. When you hit the gym, you’ll get your fitness face; when it’s time to unwind at night, you can switch to a more relaxing face with fewer distractions. The possibilities are endless... More here.

I had no idea you could do this. Great tip!