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, 1 July 2026: day of Mercury
- Sunrise
- 04:47
- Sunset
- 21:20
- Next sunrise
- 04:48
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/London).
Day
- 1☿︎ Mercury04:47 – 06:10
- 2☽︎ Moon06:10 – 07:33
- 3♄︎ Saturn07:33 – 08:55
- 4♃︎ Jupiter08:55 – 10:18
- 5♂︎ Mars10:18 – 11:41
- 6☉︎ Sun11:41 – 13:04
- 7♀︎ Venus13:04 – 14:27
- 8☿︎ Mercury14:27 – 15:49
- 9☽︎ Moon15:49 – 17:12
- 10♄︎ Saturn17:12 – 18:35
- 11♃︎ Jupiter18:35 – 19:58
- 12♂︎ Mars19:58 – 21:20
Night
- 1☉︎ Sun21:20 – 21:58
- 2♀︎ Venus21:58 – 22:35
- 3☿︎ Mercury22:35 – 23:12
- 4☽︎ Moon23:12 – 23:50
- 5♄︎ Saturn23:50 – 00:27
- 6♃︎ Jupiter00:27 – 01:04
- 7♂︎ Mars01:04 – 01:41
- 8☉︎ Sun01:41 – 02:19
- 9♀︎ Venus02:19 – 02:56
- 10☿︎ Mercury02:56 – 03:33
- 11☽︎ Moon03:33 – 04:11
- 12♄︎ Saturn04:11 – 04:48
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 1 July 2026, the Sun rises at 04:47 and sets at 21:20: the day lasts 16h 33m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:48, lasts 7h 27m: twelve night hours of 37 min.
Which planet rules the first hour that day?
Mercury, from 04:47 to 06:10: 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.