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 Wednesday, 2 December 2026: day of Mercury
- Sunrise
- 07:45
- Sunset
- 15:54
- Next sunrise
- 07:46
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1☿︎ Mercury07:45 – 08:25
- 2☽︎ Moon08:25 – 09:06
- 3♄︎ Saturn09:06 – 09:47
- 4♃︎ Jupiter09:47 – 10:28
- 5♂︎ Mars10:28 – 11:08
- 6☉︎ Sun11:08 – 11:49
- 7♀︎ Venus11:49 – 12:30
- 8☿︎ Mercury12:30 – 13:11
- 9☽︎ Moon13:11 – 13:52
- 10♄︎ Saturn13:52 – 14:32
- 11♃︎ Jupiter14:32 – 15:13
- 12♂︎ Mars15:13 – 15:54
Night
- 1☉︎ Sun15:54 – 17:13
- 2♀︎ Venus17:13 – 18:33
- 3☿︎ Mercury18:33 – 19:52
- 4☽︎ Moon19:52 – 21:11
- 5♄︎ Saturn21:11 – 22:31
- 6♃︎ Jupiter22:31 – 23:50
- 7♂︎ Mars23:50 – 01:09
- 8☉︎ Sun01:09 – 02:29
- 9♀︎ Venus02:29 – 03:48
- 10☿︎ Mercury03:48 – 05:07
- 11☽︎ Moon05:07 – 06:27
- 12♄︎ Saturn06:27 – 07:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 2 December 2026, the Sun rises at 07:45 and sets at 15:54: the day lasts 8h 09m, that is twelve day hours of 41 min. The night, until the next sunrise at 07:46, lasts 15h 52m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mercury, from 07:45 to 08:25: 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.