A daily almanac for your Pebble.
Displays lunar phase, sunrise and sunset times, and grey bands representing civil, nautical and astronomical twilight on a 24-hour watch dial. An hour hand indicates the current time, somewhat in the fashion of a sundial gnomon, but it's good over all 24 hours. Also includes a digital time/date display, which honors your Pebble's 12/24 hour configuration.
For this version, no manual configuration is needed: the watchface uses Pebble javascript to retrieve the user's current location and timezone each time it is started. These values are saved in the watch for those occasions when the phone / network connection is unavailable.
If you travel to another location or daylight savings time starts or stops, simply ensure that your phone is connected to your Pebble and to a location source (could be the phone network). Then bring up the Twilight Sunclock watchface's settings page on your phone and touch the Send button. The watchface display should update to reflect your present location within a few seconds.
If you encounter display problems or other issues which you wish to report, please use the watchface's settings page to ensure that the watchface is using your current location. Click on the Send button to send the phone's current location to the watch. Then click Done to go back to the main configuration page and click Show to display current location data. If desired in the resulting display page you may then touch the Decode button to find the name of some nearby location (courtesy of geonames.org). In any case, please include the displayed lat, long and tz-off values with your error report. Submissions may be made via the Pebble application on your phone. Thank you!
Note that, as of September 2014, the Android Pebble application caches the timezone value and does not reflect timezone updates due to changes in location. The actual position data is properly refreshed, but timezone data is not. You can check for this by using the watchface's settings, and clicking on the Show button: the tz-off line shows the (believed) offset in hours of your present location from UTC. To bring the Pebble application's idea of timezone back into sync with your present location, it seems to be necessary to reboot your phone.
This is a Pebble v2.x port of a Pebble 1.x version. The 1.x line had a succession of contributors. It was originally created (to the best of my understanding) by Michael Ehrmann (@mehrmann) and then updated by @KarbonPebbler, Chad Harp (@harpchad), @BobTheMadCow and David Orgeman (@orgemd). (My apologies if I have left out any other contributors. If I have, please let me know.)