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, 30 April 2026: day of Jupiter
- Sunrise
- 05:34
- Sunset
- 20:22
- Next sunrise
- 05:32
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter05:34 – 06:48
- 2♂︎ Mars06:48 – 08:02
- 3☉︎ Sun08:02 – 09:16
- 4♀︎ Venus09:16 – 10:30
- 5☿︎ Mercury10:30 – 11:44
- 6☽︎ Moon11:44 – 12:58
- 7♄︎ Saturn12:58 – 14:12
- 8♃︎ Jupiter14:12 – 15:26
- 9♂︎ Mars15:26 – 16:40
- 10☉︎ Sun16:40 – 17:54
- 11♀︎ Venus17:54 – 19:08
- 12☿︎ Mercury19:08 – 20:22
Night
- 1☽︎ Moon20:22 – 21:08
- 2♄︎ Saturn21:08 – 21:53
- 3♃︎ Jupiter21:53 – 22:39
- 4♂︎ Mars22:39 – 23:25
- 5☉︎ Sun23:25 – 00:11
- 6♀︎ Venus00:11 – 00:57
- 7☿︎ Mercury00:57 – 01:43
- 8☽︎ Moon01:43 – 02:29
- 9♄︎ Saturn02:29 – 03:14
- 10♃︎ Jupiter03:14 – 04:00
- 11♂︎ Mars04:00 – 04:46
- 12☉︎ Sun04:46 – 05:32
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 30 April 2026, the Sun rises at 05:34 and sets at 20:22: the day lasts 14h 48m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:32, lasts 9h 10m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Jupiter, from 05:34 to 06:48: 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.