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, 30 May 2026: day of Saturn
- Sunrise
- 05:03
- Sunset
- 21:18
- Next sunrise
- 05:02
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:03 – 06:24
- 2♃︎ Jupiter06:24 – 07:45
- 3♂︎ Mars07:45 – 09:06
- 4☉︎ Sun09:06 – 10:28
- 5♀︎ Venus10:28 – 11:49
- 6☿︎ Mercury11:49 – 13:10
- 7☽︎ Moon13:10 – 14:31
- 8♄︎ Saturn14:31 – 15:53
- 9♃︎ Jupiter15:53 – 17:14
- 10♂︎ Mars17:14 – 18:35
- 11☉︎ Sun18:35 – 19:56
- 12♀︎ Venus19:56 – 21:18
Night
- 1☿︎ Mercury21:18 – 21:56
- 2☽︎ Moon21:56 – 22:35
- 3♄︎ Saturn22:35 – 23:14
- 4♃︎ Jupiter23:14 – 23:52
- 5♂︎ Mars23:52 – 00:31
- 6☉︎ Sun00:31 – 01:10
- 7♀︎ Venus01:10 – 01:48
- 8☿︎ Mercury01:48 – 02:27
- 9☽︎ Moon02:27 – 03:06
- 10♄︎ Saturn03:06 – 03:44
- 11♃︎ Jupiter03:44 – 04:23
- 12♂︎ Mars04:23 – 05:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Saturday, 30 May 2026, the Sun rises at 05:03 and sets at 21:18: the day lasts 16h 15m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:02, lasts 7h 44m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Saturn, from 05:03 to 06:24: 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.