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, 7 October 2026: day of Mercury
- Sunrise
- 07:10
- Sunset
- 18:24
- Next sunrise
- 07:12
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/London).
Day
- 1☿︎ Mercury07:10 – 08:07
- 2☽︎ Moon08:07 – 09:03
- 3♄︎ Saturn09:03 – 09:59
- 4♃︎ Jupiter09:59 – 10:55
- 5♂︎ Mars10:55 – 11:51
- 6☉︎ Sun11:51 – 12:47
- 7♀︎ Venus12:47 – 13:44
- 8☿︎ Mercury13:44 – 14:40
- 9☽︎ Moon14:40 – 15:36
- 10♄︎ Saturn15:36 – 16:32
- 11♃︎ Jupiter16:32 – 17:28
- 12♂︎ Mars17:28 – 18:24
Night
- 1☉︎ Sun18:24 – 19:28
- 2♀︎ Venus19:28 – 20:32
- 3☿︎ Mercury20:32 – 21:36
- 4☽︎ Moon21:36 – 22:40
- 5♄︎ Saturn22:40 – 23:44
- 6♃︎ Jupiter23:44 – 00:48
- 7♂︎ Mars00:48 – 01:52
- 8☉︎ Sun01:52 – 02:56
- 9♀︎ Venus02:56 – 04:00
- 10☿︎ Mercury04:00 – 05:04
- 11☽︎ Moon05:04 – 06:08
- 12♄︎ Saturn06:08 – 07:12
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 7 October 2026, the Sun rises at 07:10 and sets at 18:24: the day lasts 11h 14m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:12, lasts 12h 48m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:10 to 08:07: 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.