# Ghurubi (غروبي) — The Earth Clock

> Ghurubi is a free web clock that shows natural, sunset-based time ("Ghurubi time", also known as Arabic sunset time, Ottoman Ezani/Alaturka time, and the basis of Hebrew sha'ot zmaniyot). Sunset is 00:00 and starts the new day; night comes first, then day. Available in Arabic, English, Turkish and Hebrew at https://ghurubi.com.

## Key facts
- Day starts at sunset (00:00). Sunrise falls near 12:00 in seasonal hours.
- Two modes: equal hours (60 minutes) and seasonal hours (night and day each split into 12 parts).
- Sunrise/sunset computed from city coordinates at sea level, matching the Umm al-Qura calendar.
- Optional Islamic prayer times (Umm al-Qura method) shown in Ghurubi time. Hijri date from the official Umm al-Qura table.
- Works for any city in the world; installable as an app; Wear OS watch face available.

## Pages
- [Home — your location](https://ghurubi.com/)
- [All cities](https://ghurubi.com/cities): e.g. [Makkah](https://ghurubi.com/city/makkah), [Riyadh](https://ghurubi.com/city/riyadh), [Istanbul](https://ghurubi.com/city/istanbul), [Jerusalem](https://ghurubi.com/city/jerusalem), [Aleppo](https://ghurubi.com/city/aleppo)
- [Compare two cities](https://ghurubi.com/compare): e.g. [Makkah vs Riyadh](https://ghurubi.com/compare/makkah-vs-riyadh)
- [Event countdown](https://ghurubi.com/event)
- [Watch face](https://ghurubi.com/watch)
- [Site map](https://ghurubi.com/sitemap) · [XML sitemap](https://ghurubi.com/sitemap.xml)

Language versions: add ?lang=ar, ?lang=tr or ?lang=he to any page.