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, 20 July 2026: day of the Moon
- Sunrise
- 05:19
- Sunset
- 21:17
- Next sunrise
- 05:20
A day hour lasts 1h 20m; a night hour, 40 min. Local time (Europe/London).
Day
- 1☽︎ Moon05:19 – 06:39
- 2♄︎ Saturn06:39 – 07:59
- 3♃︎ Jupiter07:59 – 09:19
- 4♂︎ Mars09:19 – 10:38
- 5☉︎ Sun10:38 – 11:58
- 6♀︎ Venus11:58 – 13:18
- 7☿︎ Mercury13:18 – 14:38
- 8☽︎ Moon14:38 – 15:58
- 9♄︎ Saturn15:58 – 17:18
- 10♃︎ Jupiter17:18 – 18:38
- 11♂︎ Mars18:38 – 19:58
- 12☉︎ Sun19:58 – 21:17
Night
- 1♀︎ Venus21:17 – 21:58
- 2☿︎ Mercury21:58 – 22:38
- 3☽︎ Moon22:38 – 23:18
- 4♄︎ Saturn23:18 – 23:58
- 5♃︎ Jupiter23:58 – 00:39
- 6♂︎ Mars00:39 – 01:19
- 7☉︎ Sun01:19 – 01:59
- 8♀︎ Venus01:59 – 02:39
- 9☿︎ Mercury02:39 – 03:20
- 10☽︎ Moon03:20 – 04:00
- 11♄︎ Saturn04:00 – 04:40
- 12♃︎ Jupiter04:40 – 05:20
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Monday, 20 July 2026, the Sun rises at 05:19 and sets at 21:17: the day lasts 15h 58m, that is twelve day hours of 1h 20m. The night, until the next sunrise at 05:20, lasts 8h 03m: twelve night hours of 40 min.
Which planet rules the first hour that day?
The Moon, from 05:19 to 06:39: 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.