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 Thursday, 23 July 2026: day of Jupiter
- Sunrise
- 05:11
- Sunset
- 21:02
- Next sunrise
- 05:12
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter05:11 – 06:30
- 2♂︎ Mars06:30 – 07:49
- 3☉︎ Sun07:49 – 09:08
- 4♀︎ Venus09:08 – 10:28
- 5☿︎ Mercury10:28 – 11:47
- 6☽︎ Moon11:47 – 13:06
- 7♄︎ Saturn13:06 – 14:25
- 8♃︎ Jupiter14:25 – 15:45
- 9♂︎ Mars15:45 – 17:04
- 10☉︎ Sun17:04 – 18:23
- 11♀︎ Venus18:23 – 19:42
- 12☿︎ Mercury19:42 – 21:02
Night
- 1☽︎ Moon21:02 – 21:42
- 2♄︎ Saturn21:42 – 22:23
- 3♃︎ Jupiter22:23 – 23:04
- 4♂︎ Mars23:04 – 23:45
- 5☉︎ Sun23:45 – 00:26
- 6♀︎ Venus00:26 – 01:07
- 7☿︎ Mercury01:07 – 01:48
- 8☽︎ Moon01:48 – 02:29
- 9♄︎ Saturn02:29 – 03:09
- 10♃︎ Jupiter03:09 – 03:50
- 11♂︎ Mars03:50 – 04:31
- 12☉︎ Sun04:31 – 05:12
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 23 July 2026, the Sun rises at 05:11 and sets at 21:02: the day lasts 15h 51m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:12, lasts 8h 10m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Jupiter, from 05:11 to 06:30: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.