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, 4 July 2026: day of Saturn
- Sunrise
- 05:02
- Sunset
- 21:31
- Next sunrise
- 05:03
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/London).
Day
- 1♄︎ Saturn05:02 – 06:24
- 2♃︎ Jupiter06:24 – 07:47
- 3♂︎ Mars07:47 – 09:09
- 4☉︎ Sun09:09 – 10:32
- 5♀︎ Venus10:32 – 11:54
- 6☿︎ Mercury11:54 – 13:16
- 7☽︎ Moon13:16 – 14:39
- 8♄︎ Saturn14:39 – 16:01
- 9♃︎ Jupiter16:01 – 17:24
- 10♂︎ Mars17:24 – 18:46
- 11☉︎ Sun18:46 – 20:09
- 12♀︎ Venus20:09 – 21:31
Night
- 1☿︎ Mercury21:31 – 22:09
- 2☽︎ Moon22:09 – 22:46
- 3♄︎ Saturn22:46 – 23:24
- 4♃︎ Jupiter23:24 – 00:02
- 5♂︎ Mars00:02 – 00:39
- 6☉︎ Sun00:39 – 01:17
- 7♀︎ Venus01:17 – 01:54
- 8☿︎ Mercury01:54 – 02:32
- 9☽︎ Moon02:32 – 03:10
- 10♄︎ Saturn03:10 – 03:47
- 11♃︎ Jupiter03:47 – 04:25
- 12♂︎ Mars04:25 – 05:03
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Saturday, 4 July 2026, the Sun rises at 05:02 and sets at 21:31: the day lasts 16h 30m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 05:03, lasts 7h 31m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Saturn, from 05:02 to 06:24: 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.