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, 29 January 2027: day of Venus
- Sunrise
- 07:43
- Sunset
- 16:44
- Next sunrise
- 07:42
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/London).
Day
- 1♀︎ Venus07:43 – 08:28
- 2☿︎ Mercury08:28 – 09:13
- 3☽︎ Moon09:13 – 09:58
- 4♄︎ Saturn09:58 – 10:43
- 5♃︎ Jupiter10:43 – 11:28
- 6♂︎ Mars11:28 – 12:13
- 7☉︎ Sun12:13 – 12:58
- 8♀︎ Venus12:58 – 13:43
- 9☿︎ Mercury13:43 – 14:28
- 10☽︎ Moon14:28 – 15:14
- 11♄︎ Saturn15:14 – 15:59
- 12♃︎ Jupiter15:59 – 16:44
Night
- 1♂︎ Mars16:44 – 17:58
- 2☉︎ Sun17:58 – 19:13
- 3♀︎ Venus19:13 – 20:28
- 4☿︎ Mercury20:28 – 21:43
- 5☽︎ Moon21:43 – 22:58
- 6♄︎ Saturn22:58 – 00:13
- 7♃︎ Jupiter00:13 – 01:27
- 8♂︎ Mars01:27 – 02:42
- 9☉︎ Sun02:42 – 03:57
- 10♀︎ Venus03:57 – 05:12
- 11☿︎ Mercury05:12 – 06:27
- 12☽︎ Moon06:27 – 07:42
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Friday, 29 January 2027, the Sun rises at 07:43 and sets at 16:44: the day lasts 9h 00m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:42, lasts 14h 58m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Venus, from 07:43 to 08:28: 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.