A Hebrew hour is defined as 1/12th of the time between sunset and sunrise, or 1/12th of the time between sunrise and sunset. This is a analogue watchface for Pebble smartwatches that shows the positions of the 24 Hebrew hours, along with a hand to sweep over the watchface once every 24 hours. Thus the first orange dot is sunrise, the first blue dot sunset. As the season changes, the inter-dot distance will grow/shrink, to represent the growing/shrinking Hebrew hours of day and night.
Pebble C originally stolen from initialneil/PebbleFace-IvyTick, hacked for this purpose, then heavily refactored. PebbleKit JS originally stolen from NOAA Solar Calculator, lightly refactored.
I wrote this for my friend Joe (Happy Hanukkah 5776!), and because I think the idea of Hebrew time is really cool and captures seasonal variation in day length well, helping me value my daytime in winter more.
Public domain as far as I care.
Vaguely tested in CloudPebble emulator, no guarantees this will actually work for you. :3