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 Tuesday, 1 December 2026: day of Mars
- Sunrise
- 07:43
- Sunset
- 15:54
- Next sunrise
- 07:45
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1♂︎ Mars07:43 – 08:24
- 2☉︎ Sun08:24 – 09:05
- 3♀︎ Venus09:05 – 09:46
- 4☿︎ Mercury09:46 – 10:27
- 5☽︎ Moon10:27 – 11:08
- 6♄︎ Saturn11:08 – 11:49
- 7♃︎ Jupiter11:49 – 12:30
- 8♂︎ Mars12:30 – 13:11
- 9☉︎ Sun13:11 – 13:52
- 10♀︎ Venus13:52 – 14:33
- 11☿︎ Mercury14:33 – 15:14
- 12☽︎ Moon15:14 – 15:54
Night
- 1♄︎ Saturn15:54 – 17:14
- 2♃︎ Jupiter17:14 – 18:33
- 3♂︎ Mars18:33 – 19:52
- 4☉︎ Sun19:52 – 21:11
- 5♀︎ Venus21:11 – 22:30
- 6☿︎ Mercury22:30 – 23:50
- 7☽︎ Moon23:50 – 01:09
- 8♄︎ Saturn01:09 – 02:28
- 9♃︎ Jupiter02:28 – 03:47
- 10♂︎ Mars03:47 – 05:06
- 11☉︎ Sun05:06 – 06:25
- 12♀︎ Venus06:25 – 07:45
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Tuesday, 1 December 2026, the Sun rises at 07:43 and sets at 15:54: the day lasts 8h 11m, that is twelve day hours of 41 min. The night, until the next sunrise at 07:45, lasts 15h 50m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 07:43 to 08:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.