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, 19 November 2025: day of Mercury
- Sunrise
- 07:25
- Sunset
- 16:05
- Next sunrise
- 07:27
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/London).
Day
- 1☿︎ Mercury07:25 – 08:08
- 2☽︎ Moon08:08 – 08:52
- 3♄︎ Saturn08:52 – 09:35
- 4♃︎ Jupiter09:35 – 10:18
- 5♂︎ Mars10:18 – 11:02
- 6☉︎ Sun11:02 – 11:45
- 7♀︎ Venus11:45 – 12:29
- 8☿︎ Mercury12:29 – 13:12
- 9☽︎ Moon13:12 – 13:55
- 10♄︎ Saturn13:55 – 14:39
- 11♃︎ Jupiter14:39 – 15:22
- 12♂︎ Mars15:22 – 16:05
Night
- 1☉︎ Sun16:05 – 17:22
- 2♀︎ Venus17:22 – 18:39
- 3☿︎ Mercury18:39 – 19:56
- 4☽︎ Moon19:56 – 21:12
- 5♄︎ Saturn21:12 – 22:29
- 6♃︎ Jupiter22:29 – 23:46
- 7♂︎ Mars23:46 – 01:03
- 8☉︎ Sun01:03 – 02:20
- 9♀︎ Venus02:20 – 03:36
- 10☿︎ Mercury03:36 – 04:53
- 11☽︎ Moon04:53 – 06:10
- 12♄︎ Saturn06:10 – 07:27
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 19 November 2025, the Sun rises at 07:25 and sets at 16:05: the day lasts 8h 40m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:27, lasts 15h 21m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 07:25 to 08:08: 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.