Fitbit Clock Face for tracking imminent phase of day (e.g. Civil Twilight, Golden Hour, Astronomical Dusk etc.) by calculating sun position timings. GPS connection required. Compatible with Fitbit Sense and Fitbit Versa 3.

Features

❤️ Heart Rate reading

👟 Daily Step counter

🔋 Battery Status

⌚️ Date & Time

🌐 GPS connection status & GPS coordinates

🌄 Names and timings of Current and Next phases of day

⏳ Progressbar and countdown timer to Next phase of day

Notes

- The sun position timings are calculated using suncalc3 (https://github.com/Hypnos3/suncalc3).

- The sun position timings are theoretically accurate to within a minute for locations between +/- 72° latitude, and within 10 minutes outside of those latitudes. The nearer you are to the equator, the more accurate the timings. However, due to variations in weather conditions, observed values may vary from calculations. More information is available at https://gml.noaa.gov/grad/solcalc/calcdetails.html

- GPS tracker is disabled when Fitbit is off the wrist to conserve battery life.

Acknowledgements

- https://dev.fitbit.com/blog/2018-08-23-cli-tools

- https://github.com/Hypnos3/suncalc3

- https://gml.noaa.gov/grad/solcalc/calcdetails.html

- http://suncalc.net