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 Friday, 11 December 2026: day of Venus
- Sunrise
- 07:55
- Sunset
- 15:51
- Next sunrise
- 07:56
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/London).
Day
- 1♀︎ Venus07:55 – 08:35
- 2☿︎ Mercury08:35 – 09:15
- 3☽︎ Moon09:15 – 09:54
- 4♄︎ Saturn09:54 – 10:34
- 5♃︎ Jupiter10:34 – 11:14
- 6♂︎ Mars11:14 – 11:53
- 7☉︎ Sun11:53 – 12:33
- 8♀︎ Venus12:33 – 13:12
- 9☿︎ Mercury13:12 – 13:52
- 10☽︎ Moon13:52 – 14:32
- 11♄︎ Saturn14:32 – 15:11
- 12♃︎ Jupiter15:11 – 15:51
Night
- 1♂︎ Mars15:51 – 17:11
- 2☉︎ Sun17:11 – 18:32
- 3♀︎ Venus18:32 – 19:52
- 4☿︎ Mercury19:52 – 21:13
- 5☽︎ Moon21:13 – 22:33
- 6♄︎ Saturn22:33 – 23:54
- 7♃︎ Jupiter23:54 – 01:14
- 8♂︎ Mars01:14 – 02:35
- 9☉︎ Sun02:35 – 03:55
- 10♀︎ Venus03:55 – 05:15
- 11☿︎ Mercury05:15 – 06:36
- 12☽︎ Moon06:36 – 07:56
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 11 December 2026, the Sun rises at 07:55 and sets at 15:51: the day lasts 7h 55m, that is twelve day hours of 40 min. The night, until the next sunrise at 07:56, lasts 16h 06m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Venus, from 07:55 to 08:35: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.