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, 12 July 2026: day of the Sun
- Sunrise
- 05:09
- Sunset
- 21:26
- Next sunrise
- 05:10
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/London).
Day
- 1☉︎ Sun05:09 – 06:31
- 2♀︎ Venus06:31 – 07:52
- 3☿︎ Mercury07:52 – 09:13
- 4☽︎ Moon09:13 – 10:35
- 5♄︎ Saturn10:35 – 11:56
- 6♃︎ Jupiter11:56 – 13:18
- 7♂︎ Mars13:18 – 14:39
- 8☉︎ Sun14:39 – 16:00
- 9♀︎ Venus16:00 – 17:22
- 10☿︎ Mercury17:22 – 18:43
- 11☽︎ Moon18:43 – 20:04
- 12♄︎ Saturn20:04 – 21:26
Night
- 1♃︎ Jupiter21:26 – 22:05
- 2♂︎ Mars22:05 – 22:43
- 3☉︎ Sun22:43 – 23:22
- 4♀︎ Venus23:22 – 00:01
- 5☿︎ Mercury00:01 – 00:39
- 6☽︎ Moon00:39 – 01:18
- 7♄︎ Saturn01:18 – 01:57
- 8♃︎ Jupiter01:57 – 02:36
- 9♂︎ Mars02:36 – 03:14
- 10☉︎ Sun03:14 – 03:53
- 11♀︎ Venus03:53 – 04:32
- 12☿︎ Mercury04:32 – 05:10
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 12 July 2026, the Sun rises at 05:09 and sets at 21:26: the day lasts 16h 16m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:10, lasts 7h 45m: twelve night hours of 39 min.
Which planet rules the first hour that day?
The Sun, from 05:09 to 06:31: 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.