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, 29 January 2026: day of Jupiter
- Sunrise
- 07:55
- Sunset
- 16:56
- Next sunrise
- 07:53
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/London).
Day
- 1♃︎ Jupiter07:55 – 08:40
- 2♂︎ Mars08:40 – 09:25
- 3☉︎ Sun09:25 – 10:10
- 4♀︎ Venus10:10 – 10:55
- 5☿︎ Mercury10:55 – 11:41
- 6☽︎ Moon11:41 – 12:26
- 7♄︎ Saturn12:26 – 13:11
- 8♃︎ Jupiter13:11 – 13:56
- 9♂︎ Mars13:56 – 14:41
- 10☉︎ Sun14:41 – 15:26
- 11♀︎ Venus15:26 – 16:11
- 12☿︎ Mercury16:11 – 16:56
Night
- 1☽︎ Moon16:56 – 18:11
- 2♄︎ Saturn18:11 – 19:26
- 3♃︎ Jupiter19:26 – 20:41
- 4♂︎ Mars20:41 – 21:55
- 5☉︎ Sun21:55 – 23:10
- 6♀︎ Venus23:10 – 00:25
- 7☿︎ Mercury00:25 – 01:40
- 8☽︎ Moon01:40 – 02:54
- 9♄︎ Saturn02:54 – 04:09
- 10♃︎ Jupiter04:09 – 05:24
- 11♂︎ Mars05:24 – 06:39
- 12☉︎ Sun06:39 – 07:53
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Thursday, 29 January 2026, the Sun rises at 07:55 and sets at 16:56: the day lasts 9h 01m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:53, lasts 14h 57m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Jupiter, from 07:55 to 08:40: 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.