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, 6 October 2025: day of the Moon
- Sunrise
- 07:21
- Sunset
- 18:38
- Next sunrise
- 07:23
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/London).
Day
- 1☽︎ Moon07:21 – 08:18
- 2♄︎ Saturn08:18 – 09:14
- 3♃︎ Jupiter09:14 – 10:11
- 4♂︎ Mars10:11 – 11:07
- 5☉︎ Sun11:07 – 12:03
- 6♀︎ Venus12:03 – 13:00
- 7☿︎ Mercury13:00 – 13:56
- 8☽︎ Moon13:56 – 14:53
- 9♄︎ Saturn14:53 – 15:49
- 10♃︎ Jupiter15:49 – 16:45
- 11♂︎ Mars16:45 – 17:42
- 12☉︎ Sun17:42 – 18:38
Night
- 1♀︎ Venus18:38 – 19:42
- 2☿︎ Mercury19:42 – 20:46
- 3☽︎ Moon20:46 – 21:49
- 4♄︎ Saturn21:49 – 22:53
- 5♃︎ Jupiter22:53 – 23:57
- 6♂︎ Mars23:57 – 01:01
- 7☉︎ Sun01:01 – 02:04
- 8♀︎ Venus02:04 – 03:08
- 9☿︎ Mercury03:08 – 04:12
- 10☽︎ Moon04:12 – 05:16
- 11♄︎ Saturn05:16 – 06:19
- 12♃︎ Jupiter06:19 – 07:23
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Monday, 6 October 2025, the Sun rises at 07:21 and sets at 18:38: the day lasts 11h 17m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:23, lasts 12h 45m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Moon, from 07:21 to 08:18: 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.