Planetary hours
in Cardiff.
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 Monday, 12 October 2026: day of the Moon
- Sunrise
- 07:31
- Sunset
- 18:26
- Next sunrise
- 07:33
A day hour lasts 55 min; a night hour, 1h 06m. Local time (Europe/London).
Day
- 1☽︎ Moon07:31 – 08:26
- 2♄︎ Saturn08:26 – 09:20
- 3♃︎ Jupiter09:20 – 10:15
- 4♂︎ Mars10:15 – 11:09
- 5☉︎ Sun11:09 – 12:04
- 6♀︎ Venus12:04 – 12:58
- 7☿︎ Mercury12:58 – 13:53
- 8☽︎ Moon13:53 – 14:47
- 9♄︎ Saturn14:47 – 15:42
- 10♃︎ Jupiter15:42 – 16:36
- 11♂︎ Mars16:36 – 17:31
- 12☉︎ Sun17:31 – 18:26
Night
- 1♀︎ Venus18:26 – 19:31
- 2☿︎ Mercury19:31 – 20:37
- 3☽︎ Moon20:37 – 21:42
- 4♄︎ Saturn21:42 – 22:48
- 5♃︎ Jupiter22:48 – 23:54
- 6♂︎ Mars23:54 – 00:59
- 7☉︎ Sun00:59 – 02:05
- 8♀︎ Venus02:05 – 03:10
- 9☿︎ Mercury03:10 – 04:16
- 10☽︎ Moon04:16 – 05:21
- 11♄︎ Saturn05:21 – 06:27
- 12♃︎ Jupiter06:27 – 07:33
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Monday, 12 October 2026, the Sun rises at 07:31 and sets at 18:26: the day lasts 10h 55m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:33, lasts 13h 07m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
The Moon, from 07:31 to 08:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.