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 Friday, 15 December 2028: day of Venus
- Sunrise
- 08:00
- Sunset
- 15:51
- Next sunrise
- 08:00
A day hour lasts 39 min; a night hour, 1h 21m. Local time (Europe/London).
Day
- 1♀︎ Venus08:00 – 08:39
- 2☿︎ Mercury08:39 – 09:18
- 3☽︎ Moon09:18 – 09:57
- 4♄︎ Saturn09:57 – 10:37
- 5♃︎ Jupiter10:37 – 11:16
- 6♂︎ Mars11:16 – 11:55
- 7☉︎ Sun11:55 – 12:35
- 8♀︎ Venus12:35 – 13:14
- 9☿︎ Mercury13:14 – 13:53
- 10☽︎ Moon13:53 – 14:33
- 11♄︎ Saturn14:33 – 15:12
- 12♃︎ Jupiter15:12 – 15:51
Night
- 1♂︎ Mars15:51 – 17:12
- 2☉︎ Sun17:12 – 18:33
- 3♀︎ Venus18:33 – 19:53
- 4☿︎ Mercury19:53 – 21:14
- 5☽︎ Moon21:14 – 22:35
- 6♄︎ Saturn22:35 – 23:56
- 7♃︎ Jupiter23:56 – 01:16
- 8♂︎ Mars01:16 – 02:37
- 9☉︎ Sun02:37 – 03:58
- 10♀︎ Venus03:58 – 05:19
- 11☿︎ Mercury05:19 – 06:40
- 12☽︎ Moon06:40 – 08:00
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 15 December 2028, the Sun rises at 08:00 and sets at 15:51: the day lasts 7h 52m, that is twelve day hours of 39 min. The night, until the next sunrise at 08:00, lasts 16h 09m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Venus, from 08:00 to 08:39: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.