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 Wednesday, 21 October 2026: day of Mercury
- Sunrise
- 05:53
- Sunset
- 17:21
- Next sunrise
- 05:54
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Asia/Riyadh).
Day
- 1☿︎ Mercury05:53 – 06:51
- 2☽︎ Moon06:51 – 07:48
- 3♄︎ Saturn07:48 – 08:45
- 4♃︎ Jupiter08:45 – 09:43
- 5♂︎ Mars09:43 – 10:40
- 6☉︎ Sun10:40 – 11:37
- 7♀︎ Venus11:37 – 12:34
- 8☿︎ Mercury12:34 – 13:32
- 9☽︎ Moon13:32 – 14:29
- 10♄︎ Saturn14:29 – 15:26
- 11♃︎ Jupiter15:26 – 16:23
- 12♂︎ Mars16:23 – 17:21
Night
- 1☉︎ Sun17:21 – 18:24
- 2♀︎ Venus18:24 – 19:26
- 3☿︎ Mercury19:26 – 20:29
- 4☽︎ Moon20:29 – 21:32
- 5♄︎ Saturn21:32 – 22:35
- 6♃︎ Jupiter22:35 – 23:37
- 7♂︎ Mars23:37 – 00:40
- 8☉︎ Sun00:40 – 01:43
- 9♀︎ Venus01:43 – 02:46
- 10☿︎ Mercury02:46 – 03:48
- 11☽︎ Moon03:48 – 04:51
- 12♄︎ Saturn04:51 – 05:54
Other cities · Saudi Arabia
Questions
How are the planetary hours calculated in Riyadh?
On Wednesday, 21 October 2026, the Sun rises at 05:53 and sets at 17:21: the day lasts 11h 27m, that is twelve day hours of 57 min. The night, until the next sunrise at 05:54, lasts 12h 33m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mercury, from 05:53 to 06:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.