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 Tuesday, 19 January 2027: day of Mars
- Sunrise
- 07:55
- Sunset
- 16:26
- Next sunrise
- 07:54
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/London).
Day
- 1♂︎ Mars07:55 – 08:38
- 2☉︎ Sun08:38 – 09:21
- 3♀︎ Venus09:21 – 10:03
- 4☿︎ Mercury10:03 – 10:46
- 5☽︎ Moon10:46 – 11:28
- 6♄︎ Saturn11:28 – 12:11
- 7♃︎ Jupiter12:11 – 12:53
- 8♂︎ Mars12:53 – 13:36
- 9☉︎ Sun13:36 – 14:19
- 10♀︎ Venus14:19 – 15:01
- 11☿︎ Mercury15:01 – 15:44
- 12☽︎ Moon15:44 – 16:26
Night
- 1♄︎ Saturn16:26 – 17:44
- 2♃︎ Jupiter17:44 – 19:01
- 3♂︎ Mars19:01 – 20:18
- 4☉︎ Sun20:18 – 21:36
- 5♀︎ Venus21:36 – 22:53
- 6☿︎ Mercury22:53 – 00:10
- 7☽︎ Moon00:10 – 01:28
- 8♄︎ Saturn01:28 – 02:45
- 9♃︎ Jupiter02:45 – 04:02
- 10♂︎ Mars04:02 – 05:20
- 11☉︎ Sun05:20 – 06:37
- 12♀︎ Venus06:37 – 07:54
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Tuesday, 19 January 2027, the Sun rises at 07:55 and sets at 16:26: the day lasts 8h 31m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:54, lasts 15h 28m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 07:55 to 08:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.