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, 28 October 2026: day of Mercury
- Sunrise
- 06:46
- Sunset
- 16:40
- Next sunrise
- 06:48
A day hour lasts 50 min; a night hour, 1h 11m. Local time (Europe/London).
Day
- 1☿︎ Mercury06:46 – 07:36
- 2☽︎ Moon07:36 – 08:25
- 3♄︎ Saturn08:25 – 09:15
- 4♃︎ Jupiter09:15 – 10:04
- 5♂︎ Mars10:04 – 10:54
- 6☉︎ Sun10:54 – 11:43
- 7♀︎ Venus11:43 – 12:33
- 8☿︎ Mercury12:33 – 13:22
- 9☽︎ Moon13:22 – 14:12
- 10♄︎ Saturn14:12 – 15:01
- 11♃︎ Jupiter15:01 – 15:51
- 12♂︎ Mars15:51 – 16:40
Night
- 1☉︎ Sun16:40 – 17:51
- 2♀︎ Venus17:51 – 19:02
- 3☿︎ Mercury19:02 – 20:12
- 4☽︎ Moon20:12 – 21:23
- 5♄︎ Saturn21:23 – 22:34
- 6♃︎ Jupiter22:34 – 23:44
- 7♂︎ Mars23:44 – 00:55
- 8☉︎ Sun00:55 – 02:06
- 9♀︎ Venus02:06 – 03:16
- 10☿︎ Mercury03:16 – 04:27
- 11☽︎ Moon04:27 – 05:37
- 12♄︎ Saturn05:37 – 06:48
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 28 October 2026, the Sun rises at 06:46 and sets at 16:40: the day lasts 9h 54m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:48, lasts 14h 08m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 06:46 to 07:36: 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.