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 Friday, 23 October 2026: day of Venus
- Sunrise
- 07:38
- Sunset
- 17:50
- Next sunrise
- 07:39
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Europe/London).
Day
- 1♀︎ Venus07:38 – 08:29
- 2☿︎ Mercury08:29 – 09:20
- 3☽︎ Moon09:20 – 10:11
- 4♄︎ Saturn10:11 – 11:02
- 5♃︎ Jupiter11:02 – 11:53
- 6♂︎ Mars11:53 – 12:44
- 7☉︎ Sun12:44 – 13:35
- 8♀︎ Venus13:35 – 14:26
- 9☿︎ Mercury14:26 – 15:17
- 10☽︎ Moon15:17 – 16:08
- 11♄︎ Saturn16:08 – 16:59
- 12♃︎ Jupiter16:59 – 17:50
Night
- 1♂︎ Mars17:50 – 18:59
- 2☉︎ Sun18:59 – 20:08
- 3♀︎ Venus20:08 – 21:18
- 4☿︎ Mercury21:18 – 22:27
- 5☽︎ Moon22:27 – 23:36
- 6♄︎ Saturn23:36 – 00:45
- 7♃︎ Jupiter00:45 – 01:54
- 8♂︎ Mars01:54 – 03:03
- 9☉︎ Sun03:03 – 04:12
- 10♀︎ Venus04:12 – 05:21
- 11☿︎ Mercury05:21 – 06:30
- 12☽︎ Moon06:30 – 07:39
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 23 October 2026, the Sun rises at 07:38 and sets at 17:50: the day lasts 10h 13m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:39, lasts 13h 49m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Venus, from 07:38 to 08:29: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.