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, 25 May 2026: day of the Moon
- Sunrise
- 05:08
- Sunset
- 21:12
- Next sunrise
- 05:07
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1☽︎ Moon05:08 – 06:28
- 2♄︎ Saturn06:28 – 07:48
- 3♃︎ Jupiter07:48 – 09:09
- 4♂︎ Mars09:09 – 10:29
- 5☉︎ Sun10:29 – 11:49
- 6♀︎ Venus11:49 – 13:10
- 7☿︎ Mercury13:10 – 14:30
- 8☽︎ Moon14:30 – 15:50
- 9♄︎ Saturn15:50 – 17:11
- 10♃︎ Jupiter17:11 – 18:31
- 11♂︎ Mars18:31 – 19:51
- 12☉︎ Sun19:51 – 21:12
Night
- 1♀︎ Venus21:12 – 21:51
- 2☿︎ Mercury21:51 – 22:31
- 3☽︎ Moon22:31 – 23:10
- 4♄︎ Saturn23:10 – 23:50
- 5♃︎ Jupiter23:50 – 00:29
- 6♂︎ Mars00:29 – 01:09
- 7☉︎ Sun01:09 – 01:49
- 8♀︎ Venus01:49 – 02:28
- 9☿︎ Mercury02:28 – 03:08
- 10☽︎ Moon03:08 – 03:47
- 11♄︎ Saturn03:47 – 04:27
- 12♃︎ Jupiter04:27 – 05:07
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Monday, 25 May 2026, the Sun rises at 05:08 and sets at 21:12: the day lasts 16h 04m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:07, lasts 7h 55m: twelve night hours of 40 min.
Which planet rules the first hour that day?
The Moon, from 05:08 to 06:28: 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.