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, 28 November 2025: day of Venus
- Sunrise
- 07:51
- Sunset
- 16:09
- Next sunrise
- 07:53
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/London).
Day
- 1♀︎ Venus07:51 – 08:33
- 2☿︎ Mercury08:33 – 09:14
- 3☽︎ Moon09:14 – 09:56
- 4♄︎ Saturn09:56 – 10:37
- 5♃︎ Jupiter10:37 – 11:19
- 6♂︎ Mars11:19 – 12:00
- 7☉︎ Sun12:00 – 12:41
- 8♀︎ Venus12:41 – 13:23
- 9☿︎ Mercury13:23 – 14:04
- 10☽︎ Moon14:04 – 14:46
- 11♄︎ Saturn14:46 – 15:27
- 12♃︎ Jupiter15:27 – 16:09
Night
- 1♂︎ Mars16:09 – 17:27
- 2☉︎ Sun17:27 – 18:46
- 3♀︎ Venus18:46 – 20:05
- 4☿︎ Mercury20:05 – 21:23
- 5☽︎ Moon21:23 – 22:42
- 6♄︎ Saturn22:42 – 00:01
- 7♃︎ Jupiter00:01 – 01:19
- 8♂︎ Mars01:19 – 02:38
- 9☉︎ Sun02:38 – 03:57
- 10♀︎ Venus03:57 – 05:15
- 11☿︎ Mercury05:15 – 06:34
- 12☽︎ Moon06:34 – 07:53
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Friday, 28 November 2025, the Sun rises at 07:51 and sets at 16:09: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 07:53, lasts 15h 44m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Venus, from 07:51 to 08:33: 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.