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 Wednesday, 22 December 2027: day of Mercury
- Sunrise
- 08:04
- Sunset
- 15:53
- Next sunrise
- 08:04
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1☿︎ Mercury08:04 – 08:43
- 2☽︎ Moon08:43 – 09:22
- 3♄︎ Saturn09:22 – 10:01
- 4♃︎ Jupiter10:01 – 10:40
- 5♂︎ Mars10:40 – 11:19
- 6☉︎ Sun11:19 – 11:58
- 7♀︎ Venus11:58 – 12:38
- 8☿︎ Mercury12:38 – 13:17
- 9☽︎ Moon13:17 – 13:56
- 10♄︎ Saturn13:56 – 14:35
- 11♃︎ Jupiter14:35 – 15:14
- 12♂︎ Mars15:14 – 15:53
Night
- 1☉︎ Sun15:53 – 17:14
- 2♀︎ Venus17:14 – 18:35
- 3☿︎ Mercury18:35 – 19:56
- 4☽︎ Moon19:56 – 21:17
- 5♄︎ Saturn21:17 – 22:38
- 6♃︎ Jupiter22:38 – 23:59
- 7♂︎ Mars23:59 – 01:20
- 8☉︎ Sun01:20 – 02:40
- 9♀︎ Venus02:40 – 04:01
- 10☿︎ Mercury04:01 – 05:22
- 11☽︎ Moon05:22 – 06:43
- 12♄︎ Saturn06:43 – 08:04
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 22 December 2027, the Sun rises at 08:04 and sets at 15:53: the day lasts 7h 50m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:04, lasts 16h 11m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Mercury, from 08:04 to 08:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.