Planetary hours
in Riyadh.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Monday, 10 August 2026: day of the Moon
- Sunrise
- 05:25
- Sunset
- 18:31
- Next sunrise
- 05:25
A day hour lasts 1h 06m; a night hour, 55 min. Local time (Asia/Riyadh).
Day
- 1☽︎ Moon05:25 – 06:30
- 2♄︎ Saturn06:30 – 07:36
- 3♃︎ Jupiter07:36 – 08:41
- 4♂︎ Mars08:41 – 09:47
- 5☉︎ Sun09:47 – 10:52
- 6♀︎ Venus10:52 – 11:58
- 7☿︎ Mercury11:58 – 13:03
- 8☽︎ Moon13:03 – 14:09
- 9♄︎ Saturn14:09 – 15:14
- 10♃︎ Jupiter15:14 – 16:20
- 11♂︎ Mars16:20 – 17:25
- 12☉︎ Sun17:25 – 18:31
Night
- 1♀︎ Venus18:31 – 19:25
- 2☿︎ Mercury19:25 – 20:20
- 3☽︎ Moon20:20 – 21:15
- 4♄︎ Saturn21:15 – 22:09
- 5♃︎ Jupiter22:09 – 23:04
- 6♂︎ Mars23:04 – 23:58
- 7☉︎ Sun23:58 – 00:53
- 8♀︎ Venus00:53 – 01:47
- 9☿︎ Mercury01:47 – 02:42
- 10☽︎ Moon02:42 – 03:36
- 11♄︎ Saturn03:36 – 04:31
- 12♃︎ Jupiter04:31 – 05:25
Other cities · Saudi Arabia
Questions
How are the planetary hours calculated in Riyadh?
On Monday, 10 August 2026, the Sun rises at 05:25 and sets at 18:31: the day lasts 13h 06m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:25, lasts 10h 54m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Moon, from 05:25 to 06:30: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.