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 Saturday, 9 May 2026: day of Saturn
- Sunrise
- 05:18
- Sunset
- 20:36
- Next sunrise
- 05:16
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:18 – 06:34
- 2♃︎ Jupiter06:34 – 07:51
- 3♂︎ Mars07:51 – 09:07
- 4☉︎ Sun09:07 – 10:24
- 5♀︎ Venus10:24 – 11:40
- 6☿︎ Mercury11:40 – 12:57
- 7☽︎ Moon12:57 – 14:14
- 8♄︎ Saturn14:14 – 15:30
- 9♃︎ Jupiter15:30 – 16:47
- 10♂︎ Mars16:47 – 18:03
- 11☉︎ Sun18:03 – 19:20
- 12♀︎ Venus19:20 – 20:36
Night
- 1☿︎ Mercury20:36 – 21:20
- 2☽︎ Moon21:20 – 22:03
- 3♄︎ Saturn22:03 – 22:46
- 4♃︎ Jupiter22:46 – 23:30
- 5♂︎ Mars23:30 – 00:13
- 6☉︎ Sun00:13 – 00:56
- 7♀︎ Venus00:56 – 01:39
- 8☿︎ Mercury01:39 – 02:23
- 9☽︎ Moon02:23 – 03:06
- 10♄︎ Saturn03:06 – 03:49
- 11♃︎ Jupiter03:49 – 04:33
- 12♂︎ Mars04:33 – 05:16
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Saturday, 9 May 2026, the Sun rises at 05:18 and sets at 20:36: the day lasts 15h 18m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:16, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 05:18 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.