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 Tuesday, 22 September 2026: day of Mars
- Sunrise
- 06:46
- Sunset
- 18:59
- Next sunrise
- 06:48
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/London).
Day
- 1♂︎ Mars06:46 – 07:47
- 2☉︎ Sun07:47 – 08:48
- 3♀︎ Venus08:48 – 09:49
- 4☿︎ Mercury09:49 – 10:50
- 5☽︎ Moon10:50 – 11:51
- 6♄︎ Saturn11:51 – 12:52
- 7♃︎ Jupiter12:52 – 13:53
- 8♂︎ Mars13:53 – 14:54
- 9☉︎ Sun14:54 – 15:55
- 10♀︎ Venus15:55 – 16:56
- 11☿︎ Mercury16:56 – 17:57
- 12☽︎ Moon17:57 – 18:59
Night
- 1♄︎ Saturn18:59 – 19:58
- 2♃︎ Jupiter19:58 – 20:57
- 3♂︎ Mars20:57 – 21:56
- 4☉︎ Sun21:56 – 22:55
- 5♀︎ Venus22:55 – 23:54
- 6☿︎ Mercury23:54 – 00:53
- 7☽︎ Moon00:53 – 01:52
- 8♄︎ Saturn01:52 – 02:51
- 9♃︎ Jupiter02:51 – 03:50
- 10♂︎ Mars03:50 – 04:49
- 11☉︎ Sun04:49 – 05:48
- 12♀︎ Venus05:48 – 06:48
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Tuesday, 22 September 2026, the Sun rises at 06:46 and sets at 18:59: the day lasts 12h 13m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 06:48, lasts 11h 49m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 06:46 to 07:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.