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, 26 December 2026: day of Saturn
- Sunrise
- 08:05
- Sunset
- 15:56
- Next sunrise
- 08:05
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1♄︎ Saturn08:05 – 08:44
- 2♃︎ Jupiter08:44 – 09:24
- 3♂︎ Mars09:24 – 10:03
- 4☉︎ Sun10:03 – 10:42
- 5♀︎ Venus10:42 – 11:21
- 6☿︎ Mercury11:21 – 12:01
- 7☽︎ Moon12:01 – 12:40
- 8♄︎ Saturn12:40 – 13:19
- 9♃︎ Jupiter13:19 – 13:58
- 10♂︎ Mars13:58 – 14:38
- 11☉︎ Sun14:38 – 15:17
- 12♀︎ Venus15:17 – 15:56
Night
- 1☿︎ Mercury15:56 – 17:17
- 2☽︎ Moon17:17 – 18:38
- 3♄︎ Saturn18:38 – 19:58
- 4♃︎ Jupiter19:58 – 21:19
- 5♂︎ Mars21:19 – 22:40
- 6☉︎ Sun22:40 – 00:01
- 7♀︎ Venus00:01 – 01:21
- 8☿︎ Mercury01:21 – 02:42
- 9☽︎ Moon02:42 – 04:03
- 10♄︎ Saturn04:03 – 05:24
- 11♃︎ Jupiter05:24 – 06:45
- 12♂︎ Mars06:45 – 08:05
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Saturday, 26 December 2026, the Sun rises at 08:05 and sets at 15:56: the day lasts 7h 51m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:05, lasts 16h 09m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Saturn, from 08:05 to 08:44: 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.