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 Monday, 3 August 2026: day of the Moon
- Sunrise
- 05:27
- Sunset
- 20:45
- Next sunrise
- 05:28
A day hour lasts 1h 17m; a night hour, 44 min. Local time (Europe/London).
Day
- 1☽︎ Moon05:27 – 06:43
- 2♄︎ Saturn06:43 – 08:00
- 3♃︎ Jupiter08:00 – 09:16
- 4♂︎ Mars09:16 – 10:33
- 5☉︎ Sun10:33 – 11:49
- 6♀︎ Venus11:49 – 13:06
- 7☿︎ Mercury13:06 – 14:22
- 8☽︎ Moon14:22 – 15:39
- 9♄︎ Saturn15:39 – 16:55
- 10♃︎ Jupiter16:55 – 18:12
- 11♂︎ Mars18:12 – 19:28
- 12☉︎ Sun19:28 – 20:45
Night
- 1♀︎ Venus20:45 – 21:28
- 2☿︎ Mercury21:28 – 22:12
- 3☽︎ Moon22:12 – 22:56
- 4♄︎ Saturn22:56 – 23:39
- 5♃︎ Jupiter23:39 – 00:23
- 6♂︎ Mars00:23 – 01:06
- 7☉︎ Sun01:06 – 01:50
- 8♀︎ Venus01:50 – 02:34
- 9☿︎ Mercury02:34 – 03:17
- 10☽︎ Moon03:17 – 04:01
- 11♄︎ Saturn04:01 – 04:45
- 12♃︎ Jupiter04:45 – 05:28
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Monday, 3 August 2026, the Sun rises at 05:27 and sets at 20:45: the day lasts 15h 18m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:28, lasts 8h 43m: twelve night hours of 44 min.
Which planet rules the first hour that day?
The Moon, from 05:27 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.