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, 25 November 2025: day of Mars
- Sunrise
- 07:35
- Sunset
- 15:59
- Next sunrise
- 07:36
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/London).
Day
- 1♂︎ Mars07:35 – 08:17
- 2☉︎ Sun08:17 – 08:59
- 3♀︎ Venus08:59 – 09:41
- 4☿︎ Mercury09:41 – 10:23
- 5☽︎ Moon10:23 – 11:05
- 6♄︎ Saturn11:05 – 11:47
- 7♃︎ Jupiter11:47 – 12:29
- 8♂︎ Mars12:29 – 13:11
- 9☉︎ Sun13:11 – 13:53
- 10♀︎ Venus13:53 – 14:35
- 11☿︎ Mercury14:35 – 15:17
- 12☽︎ Moon15:17 – 15:59
Night
- 1♄︎ Saturn15:59 – 17:17
- 2♃︎ Jupiter17:17 – 18:35
- 3♂︎ Mars18:35 – 19:53
- 4☉︎ Sun19:53 – 21:11
- 5♀︎ Venus21:11 – 22:30
- 6☿︎ Mercury22:30 – 23:48
- 7☽︎ Moon23:48 – 01:06
- 8♄︎ Saturn01:06 – 02:24
- 9♃︎ Jupiter02:24 – 03:42
- 10♂︎ Mars03:42 – 05:00
- 11☉︎ Sun05:00 – 06:18
- 12♀︎ Venus06:18 – 07:36
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Tuesday, 25 November 2025, the Sun rises at 07:35 and sets at 15:59: the day lasts 8h 24m, that is twelve day hours of 42 min. The night, until the next sunrise at 07:36, lasts 15h 37m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 07:35 to 08:17: 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.