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 Thursday, 1 October 2026: day of Jupiter
- Sunrise
- 07:01
- Sunset
- 18:38
- Next sunrise
- 07:02
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:01 – 07:59
- 2♂︎ Mars07:59 – 08:57
- 3☉︎ Sun08:57 – 09:55
- 4♀︎ Venus09:55 – 10:53
- 5☿︎ Mercury10:53 – 11:51
- 6☽︎ Moon11:51 – 12:49
- 7♄︎ Saturn12:49 – 13:47
- 8♃︎ Jupiter13:47 – 14:45
- 9♂︎ Mars14:45 – 15:44
- 10☉︎ Sun15:44 – 16:42
- 11♀︎ Venus16:42 – 17:40
- 12☿︎ Mercury17:40 – 18:38
Night
- 1☽︎ Moon18:38 – 19:40
- 2♄︎ Saturn19:40 – 20:42
- 3♃︎ Jupiter20:42 – 21:44
- 4♂︎ Mars21:44 – 22:46
- 5☉︎ Sun22:46 – 23:48
- 6♀︎ Venus23:48 – 00:50
- 7☿︎ Mercury00:50 – 01:52
- 8☽︎ Moon01:52 – 02:54
- 9♄︎ Saturn02:54 – 03:56
- 10♃︎ Jupiter03:56 – 04:58
- 11♂︎ Mars04:58 – 06:00
- 12☉︎ Sun06:00 – 07:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 1 October 2026, the Sun rises at 07:01 and sets at 18:38: the day lasts 11h 37m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:02, lasts 12h 24m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Jupiter, from 07:01 to 07:59: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.