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, 18 November 2025: day of Mars
- Sunrise
- 07:23
- Sunset
- 16:06
- Next sunrise
- 07:25
A day hour lasts 44 min; a night hour, 1h 17m. Local time (Europe/London).
Day
- 1♂︎ Mars07:23 – 08:07
- 2☉︎ Sun08:07 – 08:51
- 3♀︎ Venus08:51 – 09:34
- 4☿︎ Mercury09:34 – 10:18
- 5☽︎ Moon10:18 – 11:01
- 6♄︎ Saturn11:01 – 11:45
- 7♃︎ Jupiter11:45 – 12:29
- 8♂︎ Mars12:29 – 13:12
- 9☉︎ Sun13:12 – 13:56
- 10♀︎ Venus13:56 – 14:39
- 11☿︎ Mercury14:39 – 15:23
- 12☽︎ Moon15:23 – 16:06
Night
- 1♄︎ Saturn16:06 – 17:23
- 2♃︎ Jupiter17:23 – 18:40
- 3♂︎ Mars18:40 – 19:56
- 4☉︎ Sun19:56 – 21:13
- 5♀︎ Venus21:13 – 22:29
- 6☿︎ Mercury22:29 – 23:46
- 7☽︎ Moon23:46 – 01:02
- 8♄︎ Saturn01:02 – 02:19
- 9♃︎ Jupiter02:19 – 03:35
- 10♂︎ Mars03:35 – 04:52
- 11☉︎ Sun04:52 – 06:09
- 12♀︎ Venus06:09 – 07:25
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Tuesday, 18 November 2025, the Sun rises at 07:23 and sets at 16:06: the day lasts 8h 43m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:25, lasts 15h 19m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 07:23 to 08:07: 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.