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, 6 May 2026: day of Mercury
- Sunrise
- 05:23
- Sunset
- 20:31
- Next sunrise
- 05:21
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:23 – 06:39
- 2☽︎ Moon06:39 – 07:54
- 3♄︎ Saturn07:54 – 09:10
- 4♃︎ Jupiter09:10 – 10:26
- 5♂︎ Mars10:26 – 11:41
- 6☉︎ Sun11:41 – 12:57
- 7♀︎ Venus12:57 – 14:13
- 8☿︎ Mercury14:13 – 15:29
- 9☽︎ Moon15:29 – 16:44
- 10♄︎ Saturn16:44 – 18:00
- 11♃︎ Jupiter18:00 – 19:16
- 12♂︎ Mars19:16 – 20:31
Night
- 1☉︎ Sun20:31 – 21:16
- 2♀︎ Venus21:16 – 22:00
- 3☿︎ Mercury22:00 – 22:44
- 4☽︎ Moon22:44 – 23:28
- 5♄︎ Saturn23:28 – 00:12
- 6♃︎ Jupiter00:12 – 00:56
- 7♂︎ Mars00:56 – 01:40
- 8☉︎ Sun01:40 – 02:25
- 9♀︎ Venus02:25 – 03:09
- 10☿︎ Mercury03:09 – 03:53
- 11☽︎ Moon03:53 – 04:37
- 12♄︎ Saturn04:37 – 05:21
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 6 May 2026, the Sun rises at 05:23 and sets at 20:31: the day lasts 15h 08m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:21, lasts 8h 50m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 05:23 to 06:39: 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.