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, 28 July 2025: day of the Moon
- Sunrise
- 05:30
- Sunset
- 21:06
- Next sunrise
- 05:32
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/London).
Day
- 1☽︎ Moon05:30 – 06:48
- 2♄︎ Saturn06:48 – 08:06
- 3♃︎ Jupiter08:06 – 09:24
- 4♂︎ Mars09:24 – 10:42
- 5☉︎ Sun10:42 – 12:00
- 6♀︎ Venus12:00 – 13:18
- 7☿︎ Mercury13:18 – 14:36
- 8☽︎ Moon14:36 – 15:54
- 9♄︎ Saturn15:54 – 17:12
- 10♃︎ Jupiter17:12 – 18:30
- 11♂︎ Mars18:30 – 19:48
- 12☉︎ Sun19:48 – 21:06
Night
- 1♀︎ Venus21:06 – 21:48
- 2☿︎ Mercury21:48 – 22:30
- 3☽︎ Moon22:30 – 23:13
- 4♄︎ Saturn23:13 – 23:55
- 5♃︎ Jupiter23:55 – 00:37
- 6♂︎ Mars00:37 – 01:19
- 7☉︎ Sun01:19 – 02:01
- 8♀︎ Venus02:01 – 02:43
- 9☿︎ Mercury02:43 – 03:25
- 10☽︎ Moon03:25 – 04:08
- 11♄︎ Saturn04:08 – 04:50
- 12♃︎ Jupiter04:50 – 05:32
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Monday, 28 July 2025, the Sun rises at 05:30 and sets at 21:06: the day lasts 15h 36m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:32, lasts 8h 26m: twelve night hours of 42 min.
Which planet rules the first hour that day?
The Moon, from 05:30 to 06:48: 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.