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, 8 October 2026: day of Jupiter
- Sunrise
- 07:12
- Sunset
- 18:22
- Next sunrise
- 07:14
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:12 – 08:08
- 2♂︎ Mars08:08 – 09:04
- 3☉︎ Sun09:04 – 10:00
- 4♀︎ Venus10:00 – 10:55
- 5☿︎ Mercury10:55 – 11:51
- 6☽︎ Moon11:51 – 12:47
- 7♄︎ Saturn12:47 – 13:43
- 8♃︎ Jupiter13:43 – 14:39
- 9♂︎ Mars14:39 – 15:35
- 10☉︎ Sun15:35 – 16:30
- 11♀︎ Venus16:30 – 17:26
- 12☿︎ Mercury17:26 – 18:22
Night
- 1☽︎ Moon18:22 – 19:26
- 2♄︎ Saturn19:26 – 20:31
- 3♃︎ Jupiter20:31 – 21:35
- 4♂︎ Mars21:35 – 22:39
- 5☉︎ Sun22:39 – 23:44
- 6♀︎ Venus23:44 – 00:48
- 7☿︎ Mercury00:48 – 01:52
- 8☽︎ Moon01:52 – 02:57
- 9♄︎ Saturn02:57 – 04:01
- 10♃︎ Jupiter04:01 – 05:05
- 11♂︎ Mars05:05 – 06:09
- 12☉︎ Sun06:09 – 07:14
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 8 October 2026, the Sun rises at 07:12 and sets at 18:22: the day lasts 11h 10m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:14, lasts 12h 52m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Jupiter, from 07:12 to 08:08: 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.