GammaChron
Clock Chimes - Chime using one of 128 possible Midi Instruments or speech, 7 chimes or "Hour Only", chime frequency selection, "Quiet Time" option. Alarm Clock - Dual alarm plus "Nap", plays mp3, WAV, Midi or speech for sound, visual indicators, "Sleep" and "Reset", log. ... Atmosphere Information - Current moon phase icon in system tray, sunrise, sunset, moonrise, moonset, synodic day and meteor shower data with notifications. ... Timers - Dual timers, millisecond resolution, stop and continue, real-time difference between timers.
http://www.DesertViewSoftware.com/GammaChron10.zip - 1Mb - Download - Screenshot

Click Clock
Click Clock is a clock, calendar, weather, and astronomy program. It shows your local temperature in the tray. It also shows local weather, animated weather radar, animated satellite images, date and time of sunrise, sunset, moonrise, moonset, equinoxes & solstices, moon phases, eclipses, meteor... Unique graph of sunrise and set times for the entire year. ... Click Clock is unique in that the calculation of rise and set times takes into account your altitude above sea level which can change these times by several minutes.
http://www.elegantpie.com/clickclock-setup.exe - 6Mb - Download - Screenshot