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, 25 July 2025: day of Venus
- Sunrise
- 05:14
- Sunset
- 20:58
- Next sunrise
- 05:15
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1♀︎ Venus05:14 – 06:32
- 2☿︎ Mercury06:32 – 07:51
- 3☽︎ Moon07:51 – 09:10
- 4♄︎ Saturn09:10 – 10:29
- 5♃︎ Jupiter10:29 – 11:47
- 6♂︎ Mars11:47 – 13:06
- 7☉︎ Sun13:06 – 14:25
- 8♀︎ Venus14:25 – 15:44
- 9☿︎ Mercury15:44 – 17:02
- 10☽︎ Moon17:02 – 18:21
- 11♄︎ Saturn18:21 – 19:40
- 12♃︎ Jupiter19:40 – 20:58
Night
- 1♂︎ Mars20:58 – 21:40
- 2☉︎ Sun21:40 – 22:21
- 3♀︎ Venus22:21 – 23:03
- 4☿︎ Mercury23:03 – 23:44
- 5☽︎ Moon23:44 – 00:25
- 6♄︎ Saturn00:25 – 01:07
- 7♃︎ Jupiter01:07 – 01:48
- 8♂︎ Mars01:48 – 02:30
- 9☉︎ Sun02:30 – 03:11
- 10♀︎ Venus03:11 – 03:52
- 11☿︎ Mercury03:52 – 04:34
- 12☽︎ Moon04:34 – 05:15
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 25 July 2025, the Sun rises at 05:14 and sets at 20:58: the day lasts 15h 45m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:15, lasts 8h 17m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Venus, from 05:14 to 06:32: 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.