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 Wednesday, 9 September 2026: day of Mercury
- Sunrise
- 06:37
- Sunset
- 19:41
- Next sunrise
- 06:39
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/London).
Day
- 1☿︎ Mercury06:37 – 07:43
- 2☽︎ Moon07:43 – 08:48
- 3♄︎ Saturn08:48 – 09:53
- 4♃︎ Jupiter09:53 – 10:58
- 5♂︎ Mars10:58 – 12:04
- 6☉︎ Sun12:04 – 13:09
- 7♀︎ Venus13:09 – 14:14
- 8☿︎ Mercury14:14 – 15:20
- 9☽︎ Moon15:20 – 16:25
- 10♄︎ Saturn16:25 – 17:30
- 11♃︎ Jupiter17:30 – 18:35
- 12♂︎ Mars18:35 – 19:41
Night
- 1☉︎ Sun19:41 – 20:35
- 2♀︎ Venus20:35 – 21:30
- 3☿︎ Mercury21:30 – 22:25
- 4☽︎ Moon22:25 – 23:20
- 5♄︎ Saturn23:20 – 00:15
- 6♃︎ Jupiter00:15 – 01:10
- 7♂︎ Mars01:10 – 02:05
- 8☉︎ Sun02:05 – 03:00
- 9♀︎ Venus03:00 – 03:54
- 10☿︎ Mercury03:54 – 04:49
- 11☽︎ Moon04:49 – 05:44
- 12♄︎ Saturn05:44 – 06:39
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 9 September 2026, the Sun rises at 06:37 and sets at 19:41: the day lasts 13h 03m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:39, lasts 10h 58m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mercury, from 06:37 to 07:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.