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 Sunday, 12 July 2026: day of the Sun
- Sunrise
- 04:57
- Sunset
- 21:14
- Next sunrise
- 04:58
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1☉︎ Sun04:57 – 06:18
- 2♀︎ Venus06:18 – 07:40
- 3☿︎ Mercury07:40 – 09:01
- 4☽︎ Moon09:01 – 10:23
- 5♄︎ Saturn10:23 – 11:44
- 6♃︎ Jupiter11:44 – 13:05
- 7♂︎ Mars13:05 – 14:27
- 8☉︎ Sun14:27 – 15:48
- 9♀︎ Venus15:48 – 17:10
- 10☿︎ Mercury17:10 – 18:31
- 11☽︎ Moon18:31 – 19:52
- 12♄︎ Saturn19:52 – 21:14
Night
- 1♃︎ Jupiter21:14 – 21:52
- 2♂︎ Mars21:52 – 22:31
- 3☉︎ Sun22:31 – 23:10
- 4♀︎ Venus23:10 – 23:49
- 5☿︎ Mercury23:49 – 00:27
- 6☽︎ Moon00:27 – 01:06
- 7♄︎ Saturn01:06 – 01:45
- 8♃︎ Jupiter01:45 – 02:23
- 9♂︎ Mars02:23 – 03:02
- 10☉︎ Sun03:02 – 03:41
- 11♀︎ Venus03:41 – 04:19
- 12☿︎ Mercury04:19 – 04:58
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Sunday, 12 July 2026, the Sun rises at 04:57 and sets at 21:14: the day lasts 16h 17m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 04:58, lasts 7h 44m: twelve night hours of 39 min.
Which planet rules the first hour that day?
The Sun, from 04:57 to 06:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.