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 Saturday, 9 May 2026: day of Saturn
- Sunrise
- 05:30
- Sunset
- 20:48
- Next sunrise
- 05:28
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:30 – 06:47
- 2♃︎ Jupiter06:47 – 08:03
- 3♂︎ Mars08:03 – 09:20
- 4☉︎ Sun09:20 – 10:36
- 5♀︎ Venus10:36 – 11:53
- 6☿︎ Mercury11:53 – 13:09
- 7☽︎ Moon13:09 – 14:26
- 8♄︎ Saturn14:26 – 15:42
- 9♃︎ Jupiter15:42 – 16:59
- 10♂︎ Mars16:59 – 18:15
- 11☉︎ Sun18:15 – 19:32
- 12♀︎ Venus19:32 – 20:48
Night
- 1☿︎ Mercury20:48 – 21:32
- 2☽︎ Moon21:32 – 22:15
- 3♄︎ Saturn22:15 – 22:58
- 4♃︎ Jupiter22:58 – 23:42
- 5♂︎ Mars23:42 – 00:25
- 6☉︎ Sun00:25 – 01:08
- 7♀︎ Venus01:08 – 01:52
- 8☿︎ Mercury01:52 – 02:35
- 9☽︎ Moon02:35 – 03:18
- 10♄︎ Saturn03:18 – 04:02
- 11♃︎ Jupiter04:02 – 04:45
- 12♂︎ Mars04:45 – 05:28
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Saturday, 9 May 2026, the Sun rises at 05:30 and sets at 20:48: the day lasts 15h 18m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:28, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 05:30 to 06:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.