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, 8 November 2025: day of Saturn
- Sunrise
- 07:06
- Sunset
- 16:21
- Next sunrise
- 07:08
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/London).
Day
- 1♄︎ Saturn07:06 – 07:52
- 2♃︎ Jupiter07:52 – 08:39
- 3♂︎ Mars08:39 – 09:25
- 4☉︎ Sun09:25 – 10:11
- 5♀︎ Venus10:11 – 10:57
- 6☿︎ Mercury10:57 – 11:43
- 7☽︎ Moon11:43 – 12:30
- 8♄︎ Saturn12:30 – 13:16
- 9♃︎ Jupiter13:16 – 14:02
- 10♂︎ Mars14:02 – 14:48
- 11☉︎ Sun14:48 – 15:34
- 12♀︎ Venus15:34 – 16:21
Night
- 1☿︎ Mercury16:21 – 17:35
- 2☽︎ Moon17:35 – 18:49
- 3♄︎ Saturn18:49 – 20:03
- 4♃︎ Jupiter20:03 – 21:16
- 5♂︎ Mars21:16 – 22:30
- 6☉︎ Sun22:30 – 23:44
- 7♀︎ Venus23:44 – 00:58
- 8☿︎ Mercury00:58 – 02:12
- 9☽︎ Moon02:12 – 03:26
- 10♄︎ Saturn03:26 – 04:40
- 11♃︎ Jupiter04:40 – 05:54
- 12♂︎ Mars05:54 – 07:08
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Saturday, 8 November 2025, the Sun rises at 07:06 and sets at 16:21: the day lasts 9h 15m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:08, lasts 14h 47m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Saturn, from 07:06 to 07:52: 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.