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, 19 July 2026: day of the Sun
- Sunrise
- 05:15
- Sunset
- 18:43
- Next sunrise
- 05:15
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Asia/Riyadh).
Day
- 1☉︎ Sun05:15 – 06:22
- 2♀︎ Venus06:22 – 07:29
- 3☿︎ Mercury07:29 – 08:37
- 4☽︎ Moon08:37 – 09:44
- 5♄︎ Saturn09:44 – 10:51
- 6♃︎ Jupiter10:51 – 11:59
- 7♂︎ Mars11:59 – 13:06
- 8☉︎ Sun13:06 – 14:14
- 9♀︎ Venus14:14 – 15:21
- 10☿︎ Mercury15:21 – 16:28
- 11☽︎ Moon16:28 – 17:36
- 12♄︎ Saturn17:36 – 18:43
Night
- 1♃︎ Jupiter18:43 – 19:36
- 2♂︎ Mars19:36 – 20:28
- 3☉︎ Sun20:28 – 21:21
- 4♀︎ Venus21:21 – 22:14
- 5☿︎ Mercury22:14 – 23:06
- 6☽︎ Moon23:06 – 23:59
- 7♄︎ Saturn23:59 – 00:52
- 8♃︎ Jupiter00:52 – 01:44
- 9♂︎ Mars01:44 – 02:37
- 10☉︎ Sun02:37 – 03:30
- 11♀︎ Venus03:30 – 04:22
- 12☿︎ Mercury04:22 – 05:15
Other cities · Saudi Arabia
Questions
How are the planetary hours calculated in Riyadh?
On Sunday, 19 July 2026, the Sun rises at 05:15 and sets at 18:43: the day lasts 13h 29m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:15, lasts 10h 32m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 05:15 to 06:22: 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.