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, 18 October 2028: day of Mercury
- Sunrise
- 07:30
- Sunset
- 17:59
- Next sunrise
- 07:32
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/London).
Day
- 1☿︎ Mercury07:30 – 08:22
- 2☽︎ Moon08:22 – 09:15
- 3♄︎ Saturn09:15 – 10:07
- 4♃︎ Jupiter10:07 – 11:00
- 5♂︎ Mars11:00 – 11:52
- 6☉︎ Sun11:52 – 12:45
- 7♀︎ Venus12:45 – 13:37
- 8☿︎ Mercury13:37 – 14:30
- 9☽︎ Moon14:30 – 15:22
- 10♄︎ Saturn15:22 – 16:15
- 11♃︎ Jupiter16:15 – 17:07
- 12♂︎ Mars17:07 – 17:59
Night
- 1☉︎ Sun17:59 – 19:07
- 2♀︎ Venus19:07 – 20:15
- 3☿︎ Mercury20:15 – 21:22
- 4☽︎ Moon21:22 – 22:30
- 5♄︎ Saturn22:30 – 23:38
- 6♃︎ Jupiter23:38 – 00:46
- 7♂︎ Mars00:46 – 01:53
- 8☉︎ Sun01:53 – 03:01
- 9♀︎ Venus03:01 – 04:09
- 10☿︎ Mercury04:09 – 05:16
- 11☽︎ Moon05:16 – 06:24
- 12♄︎ Saturn06:24 – 07:32
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 18 October 2028, the Sun rises at 07:30 and sets at 17:59: the day lasts 10h 30m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:32, lasts 13h 32m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 07:30 to 08:22: 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.