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 Friday, 15 May 2026: day of Venus
- Sunrise
- 05:08
- Sunset
- 20:45
- Next sunrise
- 05:07
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/London).
Day
- 1♀︎ Venus05:08 – 06:26
- 2☿︎ Mercury06:26 – 07:45
- 3☽︎ Moon07:45 – 09:03
- 4♄︎ Saturn09:03 – 10:21
- 5♃︎ Jupiter10:21 – 11:39
- 6♂︎ Mars11:39 – 12:57
- 7☉︎ Sun12:57 – 14:15
- 8♀︎ Venus14:15 – 15:33
- 9☿︎ Mercury15:33 – 16:51
- 10☽︎ Moon16:51 – 18:09
- 11♄︎ Saturn18:09 – 19:27
- 12♃︎ Jupiter19:27 – 20:45
Night
- 1♂︎ Mars20:45 – 21:27
- 2☉︎ Sun21:27 – 22:09
- 3♀︎ Venus22:09 – 22:51
- 4☿︎ Mercury22:51 – 23:33
- 5☽︎ Moon23:33 – 00:14
- 6♄︎ Saturn00:14 – 00:56
- 7♃︎ Jupiter00:56 – 01:38
- 8♂︎ Mars01:38 – 02:20
- 9☉︎ Sun02:20 – 03:01
- 10♀︎ Venus03:01 – 03:43
- 11☿︎ Mercury03:43 – 04:25
- 12☽︎ Moon04:25 – 05:07
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 15 May 2026, the Sun rises at 05:08 and sets at 20:45: the day lasts 15h 37m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:07, lasts 8h 21m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Venus, from 05:08 to 06:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.