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 Friday, 30 May 2025: day of Venus
- Sunrise
- 05:02
- Sunset
- 21:18
- Next sunrise
- 05:02
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1♀︎ Venus05:02 – 06:24
- 2☿︎ Mercury06:24 – 07:45
- 3☽︎ Moon07:45 – 09:06
- 4♄︎ Saturn09:06 – 10:28
- 5♃︎ Jupiter10:28 – 11:49
- 6♂︎ Mars11:49 – 13:10
- 7☉︎ Sun13:10 – 14:31
- 8♀︎ Venus14:31 – 15:53
- 9☿︎ Mercury15:53 – 17:14
- 10☽︎ Moon17:14 – 18:35
- 11♄︎ Saturn18:35 – 19:57
- 12♃︎ Jupiter19:57 – 21:18
Night
- 1♂︎ Mars21:18 – 21:57
- 2☉︎ Sun21:57 – 22:35
- 3♀︎ Venus22:35 – 23:14
- 4☿︎ Mercury23:14 – 23:52
- 5☽︎ Moon23:52 – 00:31
- 6♄︎ Saturn00:31 – 01:10
- 7♃︎ Jupiter01:10 – 01:48
- 8♂︎ Mars01:48 – 02:27
- 9☉︎ Sun02:27 – 03:06
- 10♀︎ Venus03:06 – 03:44
- 11☿︎ Mercury03:44 – 04:23
- 12☽︎ Moon04:23 – 05:02
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Friday, 30 May 2025, the Sun rises at 05:02 and sets at 21:18: the day lasts 16h 16m, 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?
Venus, from 05:02 to 06:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.