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 Thursday, 22 January 2026: day of Jupiter
- Sunrise
- 08:04
- Sunset
- 16:44
- Next sunrise
- 08:03
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/London).
Day
- 1♃︎ Jupiter08:04 – 08:47
- 2♂︎ Mars08:47 – 09:31
- 3☉︎ Sun09:31 – 10:14
- 4♀︎ Venus10:14 – 10:57
- 5☿︎ Mercury10:57 – 11:41
- 6☽︎ Moon11:41 – 12:24
- 7♄︎ Saturn12:24 – 13:07
- 8♃︎ Jupiter13:07 – 13:51
- 9♂︎ Mars13:51 – 14:34
- 10☉︎ Sun14:34 – 15:17
- 11♀︎ Venus15:17 – 16:01
- 12☿︎ Mercury16:01 – 16:44
Night
- 1☽︎ Moon16:44 – 18:01
- 2♄︎ Saturn18:01 – 19:17
- 3♃︎ Jupiter19:17 – 20:34
- 4♂︎ Mars20:34 – 21:50
- 5☉︎ Sun21:50 – 23:07
- 6♀︎ Venus23:07 – 00:23
- 7☿︎ Mercury00:23 – 01:40
- 8☽︎ Moon01:40 – 02:57
- 9♄︎ Saturn02:57 – 04:13
- 10♃︎ Jupiter04:13 – 05:30
- 11♂︎ Mars05:30 – 06:46
- 12☉︎ Sun06:46 – 08:03
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Thursday, 22 January 2026, the Sun rises at 08:04 and sets at 16:44: the day lasts 8h 40m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:03, lasts 15h 19m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Jupiter, from 08:04 to 08:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.