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 Sunday, 9 August 2026: day of the Sun
- Sunrise
- 05:36
- Sunset
- 20:34
- Next sunrise
- 05:37
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:36 – 06:51
- 2♀︎ Venus06:51 – 08:06
- 3☿︎ Mercury08:06 – 09:20
- 4☽︎ Moon09:20 – 10:35
- 5♄︎ Saturn10:35 – 11:50
- 6♃︎ Jupiter11:50 – 13:05
- 7♂︎ Mars13:05 – 14:20
- 8☉︎ Sun14:20 – 15:35
- 9♀︎ Venus15:35 – 16:50
- 10☿︎ Mercury16:50 – 18:04
- 11☽︎ Moon18:04 – 19:19
- 12♄︎ Saturn19:19 – 20:34
Night
- 1♃︎ Jupiter20:34 – 21:19
- 2♂︎ Mars21:19 – 22:05
- 3☉︎ Sun22:05 – 22:50
- 4♀︎ Venus22:50 – 23:35
- 5☿︎ Mercury23:35 – 00:21
- 6☽︎ Moon00:21 – 01:06
- 7♄︎ Saturn01:06 – 01:51
- 8♃︎ Jupiter01:51 – 02:36
- 9♂︎ Mars02:36 – 03:22
- 10☉︎ Sun03:22 – 04:07
- 11♀︎ Venus04:07 – 04:52
- 12☿︎ Mercury04:52 – 05:37
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Sunday, 9 August 2026, the Sun rises at 05:36 and sets at 20:34: the day lasts 14h 58m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:37, lasts 9h 03m: twelve night hours of 45 min.
Which planet rules the first hour that day?
The Sun, from 05:36 to 06:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.