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 Monday, 7 July 2025: day of the Moon
- Sunrise
- 04:52
- Sunset
- 21:17
- Next sunrise
- 04:53
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/London).
Day
- 1☽︎ Moon04:52 – 06:14
- 2♄︎ Saturn06:14 – 07:36
- 3♃︎ Jupiter07:36 – 08:58
- 4♂︎ Mars08:58 – 10:21
- 5☉︎ Sun10:21 – 11:43
- 6♀︎ Venus11:43 – 13:05
- 7☿︎ Mercury13:05 – 14:27
- 8☽︎ Moon14:27 – 15:49
- 9♄︎ Saturn15:49 – 17:11
- 10♃︎ Jupiter17:11 – 18:33
- 11♂︎ Mars18:33 – 19:55
- 12☉︎ Sun19:55 – 21:17
Night
- 1♀︎ Venus21:17 – 21:55
- 2☿︎ Mercury21:55 – 22:33
- 3☽︎ Moon22:33 – 23:11
- 4♄︎ Saturn23:11 – 23:49
- 5♃︎ Jupiter23:49 – 00:27
- 6♂︎ Mars00:27 – 01:05
- 7☉︎ Sun01:05 – 01:43
- 8♀︎ Venus01:43 – 02:21
- 9☿︎ Mercury02:21 – 02:59
- 10☽︎ Moon02:59 – 03:37
- 11♄︎ Saturn03:37 – 04:15
- 12♃︎ Jupiter04:15 – 04:53
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Monday, 7 July 2025, the Sun rises at 04:52 and sets at 21:17: the day lasts 16h 25m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:53, lasts 7h 36m: twelve night hours of 38 min.
Which planet rules the first hour that day?
The Moon, from 04:52 to 06:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.