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, 5 August 2026: day of Mercury
- Sunrise
- 05:42
- Sunset
- 20:53
- Next sunrise
- 05:44
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:42 – 06:58
- 2☽︎ Moon06:58 – 08:14
- 3♄︎ Saturn08:14 – 09:30
- 4♃︎ Jupiter09:30 – 10:46
- 5♂︎ Mars10:46 – 12:02
- 6☉︎ Sun12:02 – 13:18
- 7♀︎ Venus13:18 – 14:34
- 8☿︎ Mercury14:34 – 15:50
- 9☽︎ Moon15:50 – 17:06
- 10♄︎ Saturn17:06 – 18:22
- 11♃︎ Jupiter18:22 – 19:37
- 12♂︎ Mars19:37 – 20:53
Night
- 1☉︎ Sun20:53 – 21:38
- 2♀︎ Venus21:38 – 22:22
- 3☿︎ Mercury22:22 – 23:06
- 4☽︎ Moon23:06 – 23:50
- 5♄︎ Saturn23:50 – 00:34
- 6♃︎ Jupiter00:34 – 01:18
- 7♂︎ Mars01:18 – 02:03
- 8☉︎ Sun02:03 – 02:47
- 9♀︎ Venus02:47 – 03:31
- 10☿︎ Mercury03:31 – 04:15
- 11☽︎ Moon04:15 – 04:59
- 12♄︎ Saturn04:59 – 05:44
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 5 August 2026, the Sun rises at 05:42 and sets at 20:53: the day lasts 15h 11m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:44, lasts 8h 50m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 05:42 to 06:58: 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.