Sunclock

Henning Benecke

Contains adsIn-app purchases

About this app

Sunclock is an astronomical clock that displays
• sunrise, sunset, true noon and the length of the day,
• civil twilight, nautical twilight and astronomical twilight,
• golden hour and blue hour,
• moonrise, moonset, and moon phase,
• sidereal time, solar time, equation of time, and coordinated universal time (UTC)
on an analog dial.

The dial is
• a unique double dial with 12 and 24 hours,
• a classic 24-hour dial
• or a special spiral dial.

Sunclock also displays ancient time measurements where the day is divided into twelve hours from sunrise to sunset, such as
• Byzantine Time, Roman Time, Athonite Time, Lost Time,
• Horae Temporales, Zmanim, Jewish clock, Hebrew hour, Eretz Yisrael clock,
• old Arabic clock, Arabic hour names
• and Alaturka hour system.

Other time systems divide the day from sunrise to sunset into six or eight parts, such as
• Rāhu Kalam (poison period in Vedic astrology),
• Wadokei (traditional Japanese clock)
• or 時辰, traditional Chinese hours, earthly branches.

The religious times
• Roman Catholic Liturgy of the Hours,
• Islamic Prayer Times (8 methods of calculation),
• Fajr, Dhuhr, Asr, Maghrib, Isha,
• and Tahajjud
are also displayed by Sunclock.

May 14, 2024

Ratings and reviews

Love it, but have to restart every week or so. I set it for home and lock sceens and it's great. But twice or three times per month it dissappears from those screens such that I have to set them again. Otherwise it's a five star. I'm knocking it another star because I'm nearly sick and tired of having to reset the screens over and again. I'll start keeping a tab here. Today is 30 March 2024.

My all-time favorite clock app! A customized Sunclock widget has long occupied pride of place at the top of my home screen. As a photographer, I especially love seeing golden hours and blue sky moments bracketing sun-up times, as well as moon horizons. I keep all these and clock hands on my home screen, while the main app shows UTC time and daylight on the UN world map. Wish list! 1) Alarm based on, say, Civil Twilight (a.m.), with optional offset 2) Widget export to Google Watch face.

Was just looking for a good looking analog clock with something more distinctive than funky graphics for my new moto x4. After 5 other install-disappointment-delete cycles, I was so much more than pleasantly surprised. Set to 24 hour mode, with all of the twilight settings enabled, it really gives you a good perspective on a day's time. Compass is also an awesome feature!

What's new

* Changed app icon from light to dark
* Revised clock gallery
* UTC rounding error fixed
* Optimized solar compass
* Added dusk and dawn to countdown display
* Other fixes and maintenance