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 Wednesday, 9 August 2028: day of Mercury
- Sunrise
- 05:37
- Sunset
- 20:33
- Next sunrise
- 05:38
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:37 – 06:51
- 2☽︎ Moon06:51 – 08:06
- 3♄︎ Saturn08:06 – 09:21
- 4♃︎ Jupiter09:21 – 10:36
- 5♂︎ Mars10:36 – 11:50
- 6☉︎ Sun11:50 – 13:05
- 7♀︎ Venus13:05 – 14:20
- 8☿︎ Mercury14:20 – 15:34
- 9☽︎ Moon15:34 – 16:49
- 10♄︎ Saturn16:49 – 18:04
- 11♃︎ Jupiter18:04 – 19:18
- 12♂︎ Mars19:18 – 20:33
Night
- 1☉︎ Sun20:33 – 21:19
- 2♀︎ Venus21:19 – 22:04
- 3☿︎ Mercury22:04 – 22:49
- 4☽︎ Moon22:49 – 23:35
- 5♄︎ Saturn23:35 – 00:20
- 6♃︎ Jupiter00:20 – 01:06
- 7♂︎ Mars01:06 – 01:51
- 8☉︎ Sun01:51 – 02:37
- 9♀︎ Venus02:37 – 03:22
- 10☿︎ Mercury03:22 – 04:07
- 11☽︎ Moon04:07 – 04:53
- 12♄︎ Saturn04:53 – 05:38
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 9 August 2028, the Sun rises at 05:37 and sets at 20:33: the day lasts 14h 56m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:38, lasts 9h 05m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mercury, from 05:37 to 06:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.