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, 7 October 2026: day of Mercury
- Sunrise
- 07:23
- Sunset
- 18:37
- Next sunrise
- 07:24
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/London).
Day
- 1☿︎ Mercury07:23 – 08:19
- 2☽︎ Moon08:19 – 09:15
- 3♄︎ Saturn09:15 – 10:11
- 4♃︎ Jupiter10:11 – 11:07
- 5♂︎ Mars11:07 – 12:03
- 6☉︎ Sun12:03 – 13:00
- 7♀︎ Venus13:00 – 13:56
- 8☿︎ Mercury13:56 – 14:52
- 9☽︎ Moon14:52 – 15:48
- 10♄︎ Saturn15:48 – 16:44
- 11♃︎ Jupiter16:44 – 17:40
- 12♂︎ Mars17:40 – 18:37
Night
- 1☉︎ Sun18:37 – 19:41
- 2♀︎ Venus19:41 – 20:45
- 3☿︎ Mercury20:45 – 21:48
- 4☽︎ Moon21:48 – 22:52
- 5♄︎ Saturn22:52 – 23:56
- 6♃︎ Jupiter23:56 – 01:00
- 7♂︎ Mars01:00 – 02:04
- 8☉︎ Sun02:04 – 03:08
- 9♀︎ Venus03:08 – 04:12
- 10☿︎ Mercury04:12 – 05:16
- 11☽︎ Moon05:16 – 06:20
- 12♄︎ Saturn06:20 – 07:24
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 7 October 2026, the Sun rises at 07:23 and sets at 18:37: the day lasts 11h 14m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:24, lasts 12h 48m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:23 to 08:19: 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.