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, 28 May 2026: day of Jupiter
- Sunrise
- 04:52
- Sunset
- 21:03
- Next sunrise
- 04:51
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1♃︎ Jupiter04:52 – 06:13
- 2♂︎ Mars06:13 – 07:34
- 3☉︎ Sun07:34 – 08:55
- 4♀︎ Venus08:55 – 10:16
- 5☿︎ Mercury10:16 – 11:37
- 6☽︎ Moon11:37 – 12:58
- 7♄︎ Saturn12:58 – 14:19
- 8♃︎ Jupiter14:19 – 15:40
- 9♂︎ Mars15:40 – 17:00
- 10☉︎ Sun17:00 – 18:21
- 11♀︎ Venus18:21 – 19:42
- 12☿︎ Mercury19:42 – 21:03
Night
- 1☽︎ Moon21:03 – 21:42
- 2♄︎ Saturn21:42 – 22:21
- 3♃︎ Jupiter22:21 – 23:00
- 4♂︎ Mars23:00 – 23:39
- 5☉︎ Sun23:39 – 00:18
- 6♀︎ Venus00:18 – 00:57
- 7☿︎ Mercury00:57 – 01:36
- 8☽︎ Moon01:36 – 02:15
- 9♄︎ Saturn02:15 – 02:54
- 10♃︎ Jupiter02:54 – 03:33
- 11♂︎ Mars03:33 – 04:12
- 12☉︎ Sun04:12 – 04:51
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 28 May 2026, the Sun rises at 04:52 and sets at 21:03: the day lasts 16h 11m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 04:51, lasts 7h 48m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Jupiter, from 04:52 to 06:13: 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.