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, 20 February 2025: day of Jupiter
- Sunrise
- 07:04
- Sunset
- 17:25
- Next sunrise
- 07:02
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:04 – 07:55
- 2♂︎ Mars07:55 – 08:47
- 3☉︎ Sun08:47 – 09:39
- 4♀︎ Venus09:39 – 10:31
- 5☿︎ Mercury10:31 – 11:22
- 6☽︎ Moon11:22 – 12:14
- 7♄︎ Saturn12:14 – 13:06
- 8♃︎ Jupiter13:06 – 13:58
- 9♂︎ Mars13:58 – 14:49
- 10☉︎ Sun14:49 – 15:41
- 11♀︎ Venus15:41 – 16:33
- 12☿︎ Mercury16:33 – 17:25
Night
- 1☽︎ Moon17:25 – 18:33
- 2♄︎ Saturn18:33 – 19:41
- 3♃︎ Jupiter19:41 – 20:49
- 4♂︎ Mars20:49 – 21:57
- 5☉︎ Sun21:57 – 23:05
- 6♀︎ Venus23:05 – 00:13
- 7☿︎ Mercury00:13 – 01:21
- 8☽︎ Moon01:21 – 02:29
- 9♄︎ Saturn02:29 – 03:37
- 10♃︎ Jupiter03:37 – 04:45
- 11♂︎ Mars04:45 – 05:54
- 12☉︎ Sun05:54 – 07:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 20 February 2025, the Sun rises at 07:04 and sets at 17:25: the day lasts 10h 21m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:02, lasts 13h 37m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Jupiter, from 07:04 to 07:55: 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.