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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 07:39
- Sunset
- 18:15
- Next sunrise
- 07:41
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/London).
Day
- 1♄︎ Saturn07:39 – 08:32
- 2♃︎ Jupiter08:32 – 09:25
- 3♂︎ Mars09:25 – 10:18
- 4☉︎ Sun10:18 – 11:11
- 5♀︎ Venus11:11 – 12:04
- 6☿︎ Mercury12:04 – 12:57
- 7☽︎ Moon12:57 – 13:50
- 8♄︎ Saturn13:50 – 14:43
- 9♃︎ Jupiter14:43 – 15:36
- 10♂︎ Mars15:36 – 16:29
- 11☉︎ Sun16:29 – 17:22
- 12♀︎ Venus17:22 – 18:15
Night
- 1☿︎ Mercury18:15 – 19:22
- 2☽︎ Moon19:22 – 20:29
- 3♄︎ Saturn20:29 – 21:36
- 4♃︎ Jupiter21:36 – 22:44
- 5♂︎ Mars22:44 – 23:51
- 6☉︎ Sun23:51 – 00:58
- 7♀︎ Venus00:58 – 02:05
- 8☿︎ Mercury02:05 – 03:12
- 9☽︎ Moon03:12 – 04:20
- 10♄︎ Saturn04:20 – 05:27
- 11♃︎ Jupiter05:27 – 06:34
- 12♂︎ Mars06:34 – 07:41
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Saturday, 17 October 2026, the Sun rises at 07:39 and sets at 18:15: the day lasts 10h 35m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:41, lasts 13h 26m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 07:39 to 08:32: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.