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, 2 August 2026: day of the Sun
- Sunrise
- 05:25
- Sunset
- 20:46
- Next sunrise
- 05:27
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:25 – 06:42
- 2♀︎ Venus06:42 – 07:59
- 3☿︎ Mercury07:59 – 09:15
- 4☽︎ Moon09:15 – 10:32
- 5♄︎ Saturn10:32 – 11:49
- 6♃︎ Jupiter11:49 – 13:06
- 7♂︎ Mars13:06 – 14:23
- 8☉︎ Sun14:23 – 15:39
- 9♀︎ Venus15:39 – 16:56
- 10☿︎ Mercury16:56 – 18:13
- 11☽︎ Moon18:13 – 19:30
- 12♄︎ Saturn19:30 – 20:46
Night
- 1♃︎ Jupiter20:46 – 21:30
- 2♂︎ Mars21:30 – 22:13
- 3☉︎ Sun22:13 – 22:57
- 4♀︎ Venus22:57 – 23:40
- 5☿︎ Mercury23:40 – 00:23
- 6☽︎ Moon00:23 – 01:07
- 7♄︎ Saturn01:07 – 01:50
- 8♃︎ Jupiter01:50 – 02:33
- 9♂︎ Mars02:33 – 03:17
- 10☉︎ Sun03:17 – 04:00
- 11♀︎ Venus04:00 – 04:43
- 12☿︎ Mercury04:43 – 05:27
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Sunday, 2 August 2026, the Sun rises at 05:25 and sets at 20:46: the day lasts 15h 21m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:27, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Sun, from 05:25 to 06:42: 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.