Planetary hours
in Cairo.
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, 12 August 2026: day of Mercury
- Sunrise
- 06:20
- Sunset
- 19:39
- Next sunrise
- 06:21
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Africa/Cairo).
Day
- 1☿︎ Mercury06:20 – 07:27
- 2☽︎ Moon07:27 – 08:33
- 3♄︎ Saturn08:33 – 09:40
- 4♃︎ Jupiter09:40 – 10:46
- 5♂︎ Mars10:46 – 11:53
- 6☉︎ Sun11:53 – 12:59
- 7♀︎ Venus12:59 – 14:06
- 8☿︎ Mercury14:06 – 15:12
- 9☽︎ Moon15:12 – 16:19
- 10♄︎ Saturn16:19 – 17:26
- 11♃︎ Jupiter17:26 – 18:32
- 12♂︎ Mars18:32 – 19:39
Night
- 1☉︎ Sun19:39 – 20:32
- 2♀︎ Venus20:32 – 21:26
- 3☿︎ Mercury21:26 – 22:19
- 4☽︎ Moon22:19 – 23:13
- 5♄︎ Saturn23:13 – 00:06
- 6♃︎ Jupiter00:06 – 01:00
- 7♂︎ Mars01:00 – 01:53
- 8☉︎ Sun01:53 – 02:47
- 9♀︎ Venus02:47 – 03:40
- 10☿︎ Mercury03:40 – 04:34
- 11☽︎ Moon04:34 – 05:27
- 12♄︎ Saturn05:27 – 06:21
Other cities · Egypt
Questions
How are the planetary hours calculated in Cairo?
On Wednesday, 12 August 2026, the Sun rises at 06:20 and sets at 19:39: the day lasts 13h 19m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 06:21, lasts 10h 42m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Mercury, from 06:20 to 07:27: 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.