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 Sunday, 2 August 2026: day of the Sun
- Sunrise
- 05:37
- Sunset
- 20:59
- Next sunrise
- 05:39
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:37 – 06:54
- 2♀︎ Venus06:54 – 08:11
- 3☿︎ Mercury08:11 – 09:28
- 4☽︎ Moon09:28 – 10:44
- 5♄︎ Saturn10:44 – 12:01
- 6♃︎ Jupiter12:01 – 13:18
- 7♂︎ Mars13:18 – 14:35
- 8☉︎ Sun14:35 – 15:52
- 9♀︎ Venus15:52 – 17:08
- 10☿︎ Mercury17:08 – 18:25
- 11☽︎ Moon18:25 – 19:42
- 12♄︎ Saturn19:42 – 20:59
Night
- 1♃︎ Jupiter20:59 – 21:42
- 2♂︎ Mars21:42 – 22:25
- 3☉︎ Sun22:25 – 23:09
- 4♀︎ Venus23:09 – 23:52
- 5☿︎ Mercury23:52 – 00:35
- 6☽︎ Moon00:35 – 01:19
- 7♄︎ Saturn01:19 – 02:02
- 8♃︎ Jupiter02:02 – 02:45
- 9♂︎ Mars02:45 – 03:29
- 10☉︎ Sun03:29 – 04:12
- 11♀︎ Venus04:12 – 04:56
- 12☿︎ Mercury04:56 – 05:39
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 2 August 2026, the Sun rises at 05:37 and sets at 20:59: the day lasts 15h 21m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:39, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Sun, from 05:37 to 06:54: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.