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, 10 June 2026: day of Mercury
- Sunrise
- 04:43
- Sunset
- 21:16
- Next sunrise
- 04:43
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/London).
Day
- 1☿︎ Mercury04:43 – 06:06
- 2☽︎ Moon06:06 – 07:29
- 3♄︎ Saturn07:29 – 08:52
- 4♃︎ Jupiter08:52 – 10:14
- 5♂︎ Mars10:14 – 11:37
- 6☉︎ Sun11:37 – 13:00
- 7♀︎ Venus13:00 – 14:22
- 8☿︎ Mercury14:22 – 15:45
- 9☽︎ Moon15:45 – 17:08
- 10♄︎ Saturn17:08 – 18:31
- 11♃︎ Jupiter18:31 – 19:53
- 12♂︎ Mars19:53 – 21:16
Night
- 1☉︎ Sun21:16 – 21:53
- 2♀︎ Venus21:53 – 22:30
- 3☿︎ Mercury22:30 – 23:08
- 4☽︎ Moon23:08 – 23:45
- 5♄︎ Saturn23:45 – 00:22
- 6♃︎ Jupiter00:22 – 01:00
- 7♂︎ Mars01:00 – 01:37
- 8☉︎ Sun01:37 – 02:14
- 9♀︎ Venus02:14 – 02:51
- 10☿︎ Mercury02:51 – 03:29
- 11☽︎ Moon03:29 – 04:06
- 12♄︎ Saturn04:06 – 04:43
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Wednesday, 10 June 2026, the Sun rises at 04:43 and sets at 21:16: the day lasts 16h 33m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:43, lasts 7h 27m: twelve night hours of 37 min.
Which planet rules the first hour that day?
Mercury, from 04:43 to 06:06: 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.