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, 8 July 2026: day of Mercury
- Sunrise
- 04:53
- Sunset
- 21:17
- Next sunrise
- 04:54
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/London).
Day
- 1☿︎ Mercury04:53 – 06:15
- 2☽︎ Moon06:15 – 07:37
- 3♄︎ Saturn07:37 – 08:59
- 4♃︎ Jupiter08:59 – 10:21
- 5♂︎ Mars10:21 – 11:43
- 6☉︎ Sun11:43 – 13:05
- 7♀︎ Venus13:05 – 14:27
- 8☿︎ Mercury14:27 – 15:49
- 9☽︎ Moon15:49 – 17:11
- 10♄︎ Saturn17:11 – 18:33
- 11♃︎ Jupiter18:33 – 19:55
- 12♂︎ Mars19:55 – 21:17
Night
- 1☉︎ Sun21:17 – 21:55
- 2♀︎ Venus21:55 – 22:33
- 3☿︎ Mercury22:33 – 23:11
- 4☽︎ Moon23:11 – 23:49
- 5♄︎ Saturn23:49 – 00:27
- 6♃︎ Jupiter00:27 – 01:05
- 7♂︎ Mars01:05 – 01:43
- 8☉︎ Sun01:43 – 02:22
- 9♀︎ Venus02:22 – 03:00
- 10☿︎ Mercury03:00 – 03:38
- 11☽︎ Moon03:38 – 04:16
- 12♄︎ Saturn04:16 – 04:54
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 8 July 2026, the Sun rises at 04:53 and sets at 21:17: the day lasts 16h 24m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 04:54, lasts 7h 37m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Mercury, from 04:53 to 06:15: 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.