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 Thursday, 23 December 2027: day of Jupiter
- Sunrise
- 08:04
- Sunset
- 15:54
- Next sunrise
- 08:04
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1♃︎ Jupiter08:04 – 08:43
- 2♂︎ Mars08:43 – 09:22
- 3☉︎ Sun09:22 – 10:02
- 4♀︎ Venus10:02 – 10:41
- 5☿︎ Mercury10:41 – 11:20
- 6☽︎ Moon11:20 – 11:59
- 7♄︎ Saturn11:59 – 12:38
- 8♃︎ Jupiter12:38 – 13:17
- 9♂︎ Mars13:17 – 13:56
- 10☉︎ Sun13:56 – 14:36
- 11♀︎ Venus14:36 – 15:15
- 12☿︎ Mercury15:15 – 15:54
Night
- 1☽︎ Moon15:54 – 17:15
- 2♄︎ Saturn17:15 – 18:36
- 3♃︎ Jupiter18:36 – 19:57
- 4♂︎ Mars19:57 – 21:17
- 5☉︎ Sun21:17 – 22:38
- 6♀︎ Venus22:38 – 23:59
- 7☿︎ Mercury23:59 – 01:20
- 8☽︎ Moon01:20 – 02:41
- 9♄︎ Saturn02:41 – 04:02
- 10♃︎ Jupiter04:02 – 05:23
- 11♂︎ Mars05:23 – 06:44
- 12☉︎ Sun06:44 – 08:04
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 23 December 2027, the Sun rises at 08:04 and sets at 15:54: 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?
Jupiter, 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: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.