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, 27 July 2025: day of the Sun
- Sunrise
- 05:29
- Sunset
- 21:08
- Next sunrise
- 05:30
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:29 – 06:47
- 2♀︎ Venus06:47 – 08:05
- 3☿︎ Mercury08:05 – 09:24
- 4☽︎ Moon09:24 – 10:42
- 5♄︎ Saturn10:42 – 12:00
- 6♃︎ Jupiter12:00 – 13:18
- 7♂︎ Mars13:18 – 14:37
- 8☉︎ Sun14:37 – 15:55
- 9♀︎ Venus15:55 – 17:13
- 10☿︎ Mercury17:13 – 18:31
- 11☽︎ Moon18:31 – 19:49
- 12♄︎ Saturn19:49 – 21:08
Night
- 1♃︎ Jupiter21:08 – 21:50
- 2♂︎ Mars21:50 – 22:31
- 3☉︎ Sun22:31 – 23:13
- 4♀︎ Venus23:13 – 23:55
- 5☿︎ Mercury23:55 – 00:37
- 6☽︎ Moon00:37 – 01:19
- 7♄︎ Saturn01:19 – 02:01
- 8♃︎ Jupiter02:01 – 02:43
- 9♂︎ Mars02:43 – 03:25
- 10☉︎ Sun03:25 – 04:07
- 11♀︎ Venus04:07 – 04:49
- 12☿︎ Mercury04:49 – 05:30
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 27 July 2025, the Sun rises at 05:29 and sets at 21:08: the day lasts 15h 39m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:30, lasts 8h 23m: twelve night hours of 42 min.
Which planet rules the first hour that day?
The Sun, from 05:29 to 06:47: 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.