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, 1 February 2026: day of the Sun
- Sunrise
- 07:38
- Sunset
- 16:49
- Next sunrise
- 07:37
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/London).
Day
- 1☉︎ Sun07:38 – 08:24
- 2♀︎ Venus08:24 – 09:10
- 3☿︎ Mercury09:10 – 09:56
- 4☽︎ Moon09:56 – 10:42
- 5♄︎ Saturn10:42 – 11:28
- 6♃︎ Jupiter11:28 – 12:14
- 7♂︎ Mars12:14 – 13:00
- 8☉︎ Sun13:00 – 13:46
- 9♀︎ Venus13:46 – 14:32
- 10☿︎ Mercury14:32 – 15:18
- 11☽︎ Moon15:18 – 16:04
- 12♄︎ Saturn16:04 – 16:49
Night
- 1♃︎ Jupiter16:49 – 18:03
- 2♂︎ Mars18:03 – 19:17
- 3☉︎ Sun19:17 – 20:31
- 4♀︎ Venus20:31 – 21:45
- 5☿︎ Mercury21:45 – 22:59
- 6☽︎ Moon22:59 – 00:13
- 7♄︎ Saturn00:13 – 01:27
- 8♃︎ Jupiter01:27 – 02:41
- 9♂︎ Mars02:41 – 03:55
- 10☉︎ Sun03:55 – 05:09
- 11♀︎ Venus05:09 – 06:23
- 12☿︎ Mercury06:23 – 07:37
Other cities · United Kingdom
Questions
How are the planetary hours calculated in London?
On Sunday, 1 February 2026, the Sun rises at 07:38 and sets at 16:49: the day lasts 9h 11m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:37, lasts 14h 47m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
The Sun, from 07:38 to 08:24: 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.