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 Sunday, 12 July 2026: day of the Sun
- Sunrise
- 05:11
- Sunset
- 18:45
- Next sunrise
- 05:12
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Asia/Riyadh).
Day
- 1☉︎ Sun05:11 – 06:19
- 2♀︎ Venus06:19 – 07:27
- 3☿︎ Mercury07:27 – 08:35
- 4☽︎ Moon08:35 – 09:43
- 5♄︎ Saturn09:43 – 10:50
- 6♃︎ Jupiter10:50 – 11:58
- 7♂︎ Mars11:58 – 13:06
- 8☉︎ Sun13:06 – 14:14
- 9♀︎ Venus14:14 – 15:22
- 10☿︎ Mercury15:22 – 16:29
- 11☽︎ Moon16:29 – 17:37
- 12♄︎ Saturn17:37 – 18:45
Night
- 1♃︎ Jupiter18:45 – 19:37
- 2♂︎ Mars19:37 – 20:29
- 3☉︎ Sun20:29 – 21:22
- 4♀︎ Venus21:22 – 22:14
- 5☿︎ Mercury22:14 – 23:06
- 6☽︎ Moon23:06 – 23:58
- 7♄︎ Saturn23:58 – 00:51
- 8♃︎ Jupiter00:51 – 01:43
- 9♂︎ Mars01:43 – 02:35
- 10☉︎ Sun02:35 – 03:27
- 11♀︎ Venus03:27 – 04:20
- 12☿︎ Mercury04:20 – 05:12
Other cities · Saudi Arabia
Questions
How are the planetary hours calculated in Riyadh?
On Sunday, 12 July 2026, the Sun rises at 05:11 and sets at 18:45: the day lasts 13h 34m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:12, lasts 10h 27m: twelve night hours of 52 min.
Which planet rules the first hour that day?
The Sun, from 05:11 to 06:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.