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, 30 January 2026: day of Venus
- Sunrise
- 07:41
- Sunset
- 16:46
- Next sunrise
- 07:40
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/London).
Day
- 1♀︎ Venus07:41 – 08:27
- 2☿︎ Mercury08:27 – 09:12
- 3☽︎ Moon09:12 – 09:57
- 4♄︎ Saturn09:57 – 10:43
- 5♃︎ Jupiter10:43 – 11:28
- 6♂︎ Mars11:28 – 12:14
- 7☉︎ Sun12:14 – 12:59
- 8♀︎ Venus12:59 – 13:44
- 9☿︎ Mercury13:44 – 14:30
- 10☽︎ Moon14:30 – 15:15
- 11♄︎ Saturn15:15 – 16:00
- 12♃︎ Jupiter16:00 – 16:46
Night
- 1♂︎ Mars16:46 – 18:00
- 2☉︎ Sun18:00 – 19:15
- 3♀︎ Venus19:15 – 20:29
- 4☿︎ Mercury20:29 – 21:44
- 5☽︎ Moon21:44 – 22:58
- 6♄︎ Saturn22:58 – 00:13
- 7♃︎ Jupiter00:13 – 01:27
- 8♂︎ Mars01:27 – 02:42
- 9☉︎ Sun02:42 – 03:56
- 10♀︎ Venus03:56 – 05:11
- 11☿︎ Mercury05:11 – 06:25
- 12☽︎ Moon06:25 – 07:40
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 30 January 2026, the Sun rises at 07:41 and sets at 16:46: the day lasts 9h 04m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:40, lasts 14h 54m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Venus, from 07:41 to 08:27: 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.