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, 10 January 2027: day of the Sun
- Sunrise
- 08:03
- Sunset
- 16:13
- Next sunrise
- 08:02
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1☉︎ Sun08:03 – 08:43
- 2♀︎ Venus08:43 – 09:24
- 3☿︎ Mercury09:24 – 10:05
- 4☽︎ Moon10:05 – 10:46
- 5♄︎ Saturn10:46 – 11:27
- 6♃︎ Jupiter11:27 – 12:08
- 7♂︎ Mars12:08 – 12:48
- 8☉︎ Sun12:48 – 13:29
- 9♀︎ Venus13:29 – 14:10
- 10☿︎ Mercury14:10 – 14:51
- 11☽︎ Moon14:51 – 15:32
- 12♄︎ Saturn15:32 – 16:13
Night
- 1♃︎ Jupiter16:13 – 17:32
- 2♂︎ Mars17:32 – 18:51
- 3☉︎ Sun18:51 – 20:10
- 4♀︎ Venus20:10 – 21:29
- 5☿︎ Mercury21:29 – 22:48
- 6☽︎ Moon22:48 – 00:07
- 7♄︎ Saturn00:07 – 01:26
- 8♃︎ Jupiter01:26 – 02:46
- 9♂︎ Mars02:46 – 04:05
- 10☉︎ Sun04:05 – 05:24
- 11♀︎ Venus05:24 – 06:43
- 12☿︎ Mercury06:43 – 08:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Sunday, 10 January 2027, the Sun rises at 08:03 and sets at 16:13: the day lasts 8h 10m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:02, lasts 15h 50m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
The Sun, from 08:03 to 08:43: 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.