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, 18 February 2027: day of Jupiter
- Sunrise
- 07:09
- Sunset
- 17:20
- Next sunrise
- 07:07
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:09 – 08:00
- 2♂︎ Mars08:00 – 08:51
- 3☉︎ Sun08:51 – 09:41
- 4♀︎ Venus09:41 – 10:32
- 5☿︎ Mercury10:32 – 11:23
- 6☽︎ Moon11:23 – 12:14
- 7♄︎ Saturn12:14 – 13:05
- 8♃︎ Jupiter13:05 – 13:56
- 9♂︎ Mars13:56 – 14:47
- 10☉︎ Sun14:47 – 15:38
- 11♀︎ Venus15:38 – 16:29
- 12☿︎ Mercury16:29 – 17:20
Night
- 1☽︎ Moon17:20 – 18:29
- 2♄︎ Saturn18:29 – 19:38
- 3♃︎ Jupiter19:38 – 20:47
- 4♂︎ Mars20:47 – 21:56
- 5☉︎ Sun21:56 – 23:04
- 6♀︎ Venus23:04 – 00:13
- 7☿︎ Mercury00:13 – 01:22
- 8☽︎ Moon01:22 – 02:31
- 9♄︎ Saturn02:31 – 03:40
- 10♃︎ Jupiter03:40 – 04:49
- 11♂︎ Mars04:49 – 05:58
- 12☉︎ Sun05:58 – 07:07
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Thursday, 18 February 2027, the Sun rises at 07:09 and sets at 17:20: the day lasts 10h 11m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:07, lasts 13h 47m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Jupiter, from 07:09 to 08:00: 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.