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, 22 July 2026: day of Mercury
- Sunrise
- 05:09
- Sunset
- 21:03
- Next sunrise
- 05:11
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:09 – 06:29
- 2☽︎ Moon06:29 – 07:48
- 3♄︎ Saturn07:48 – 09:08
- 4♃︎ Jupiter09:08 – 10:27
- 5♂︎ Mars10:27 – 11:47
- 6☉︎ Sun11:47 – 13:06
- 7♀︎ Venus13:06 – 14:26
- 8☿︎ Mercury14:26 – 15:45
- 9☽︎ Moon15:45 – 17:04
- 10♄︎ Saturn17:04 – 18:24
- 11♃︎ Jupiter18:24 – 19:43
- 12♂︎ Mars19:43 – 21:03
Night
- 1☉︎ Sun21:03 – 21:44
- 2♀︎ Venus21:44 – 22:24
- 3☿︎ Mercury22:24 – 23:05
- 4☽︎ Moon23:05 – 23:45
- 5♄︎ Saturn23:45 – 00:26
- 6♃︎ Jupiter00:26 – 01:07
- 7♂︎ Mars01:07 – 01:47
- 8☉︎ Sun01:47 – 02:28
- 9♀︎ Venus02:28 – 03:09
- 10☿︎ Mercury03:09 – 03:49
- 11☽︎ Moon03:49 – 04:30
- 12♄︎ Saturn04:30 – 05:11
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 22 July 2026, the Sun rises at 05:09 and sets at 21:03: the day lasts 15h 54m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:11, lasts 8h 08m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 05:09 to 06:29: 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.