Planetary hours
in London.
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 Saturday, 31 October 2026: day of Saturn
- Sunrise
- 06:52
- Sunset
- 16:35
- Next sunrise
- 06:53
A day hour lasts 49 min; a night hour, 1h 12m. Local time (Europe/London).
Day
- 1♄︎ Saturn06:52 – 07:40
- 2♃︎ Jupiter07:40 – 08:29
- 3♂︎ Mars08:29 – 09:17
- 4☉︎ Sun09:17 – 10:06
- 5♀︎ Venus10:06 – 10:55
- 6☿︎ Mercury10:55 – 11:43
- 7☽︎ Moon11:43 – 12:32
- 8♄︎ Saturn12:32 – 13:20
- 9♃︎ Jupiter13:20 – 14:09
- 10♂︎ Mars14:09 – 14:58
- 11☉︎ Sun14:58 – 15:46
- 12♀︎ Venus15:46 – 16:35
Night
- 1☿︎ Mercury16:35 – 17:46
- 2☽︎ Moon17:46 – 18:58
- 3♄︎ Saturn18:58 – 20:10
- 4♃︎ Jupiter20:10 – 21:21
- 5♂︎ Mars21:21 – 22:33
- 6☉︎ Sun22:33 – 23:44
- 7♀︎ Venus23:44 – 00:56
- 8☿︎ Mercury00:56 – 02:07
- 9☽︎ Moon02:07 – 03:19
- 10♄︎ Saturn03:19 – 04:30
- 11♃︎ Jupiter04:30 – 05:42
- 12♂︎ Mars05:42 – 06:53
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Saturday, 31 October 2026, the Sun rises at 06:52 and sets at 16:35: the day lasts 9h 43m, that is twelve day hours of 49 min. The night, until the next sunrise at 06:53, lasts 14h 19m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
Saturn, from 06:52 to 07:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.