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 Tuesday, 5 August 2025: day of Mars
- 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♂︎ Mars05:42 – 06:58
- 2☉︎ Sun06:58 – 08:14
- 3♀︎ Venus08:14 – 09:30
- 4☿︎ Mercury09:30 – 10:46
- 5☽︎ Moon10:46 – 12:02
- 6♄︎ Saturn12:02 – 13:18
- 7♃︎ Jupiter13:18 – 14:34
- 8♂︎ Mars14:34 – 15:49
- 9☉︎ Sun15:49 – 17:05
- 10♀︎ Venus17:05 – 18:21
- 11☿︎ Mercury18:21 – 19:37
- 12☽︎ Moon19:37 – 20:53
Night
- 1♄︎ Saturn20:53 – 21:37
- 2♃︎ Jupiter21:37 – 22:21
- 3♂︎ Mars22:21 – 23:06
- 4☉︎ Sun23:06 – 23:50
- 5♀︎ Venus23:50 – 00:34
- 6☿︎ Mercury00:34 – 01:18
- 7☽︎ Moon01:18 – 02:03
- 8♄︎ Saturn02:03 – 02:47
- 9♃︎ Jupiter02:47 – 03:31
- 10♂︎ Mars03:31 – 04:15
- 11☉︎ Sun04:15 – 05:00
- 12♀︎ Venus05:00 – 05:44
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Tuesday, 5 August 2025, 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 51m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mars, 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 Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.