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, 5 August 2026: day of Mercury
- Sunrise
- 05:23
- Sunset
- 18:35
- Next sunrise
- 05:23
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Asia/Riyadh).
Day
- 1☿︎ Mercury05:23 – 06:29
- 2☽︎ Moon06:29 – 07:35
- 3♄︎ Saturn07:35 – 08:41
- 4♃︎ Jupiter08:41 – 09:47
- 5♂︎ Mars09:47 – 10:53
- 6☉︎ Sun10:53 – 11:59
- 7♀︎ Venus11:59 – 13:05
- 8☿︎ Mercury13:05 – 14:11
- 9☽︎ Moon14:11 – 15:17
- 10♄︎ Saturn15:17 – 16:23
- 11♃︎ Jupiter16:23 – 17:29
- 12♂︎ Mars17:29 – 18:35
Night
- 1☉︎ Sun18:35 – 19:29
- 2♀︎ Venus19:29 – 20:23
- 3☿︎ Mercury20:23 – 21:17
- 4☽︎ Moon21:17 – 22:11
- 5♄︎ Saturn22:11 – 23:05
- 6♃︎ Jupiter23:05 – 23:59
- 7♂︎ Mars23:59 – 00:53
- 8☉︎ Sun00:53 – 01:47
- 9♀︎ Venus01:47 – 02:41
- 10☿︎ Mercury02:41 – 03:35
- 11☽︎ Moon03:35 – 04:29
- 12♄︎ Saturn04:29 – 05:23
Other cities · Saudi Arabia
Questions
How are the planetary hours calculated in Riyadh?
On Wednesday, 5 August 2026, the Sun rises at 05:23 and sets at 18:35: the day lasts 13h 12m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 05:23, lasts 10h 48m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mercury, from 05:23 to 06:29: 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.