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, 21 June 2026: day of the Sun
- Sunrise
- 04:55
- Sunset
- 21:33
- Next sunrise
- 04:55
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/London).
Day
- 1☉︎ Sun04:55 – 06:18
- 2♀︎ Venus06:18 – 07:41
- 3☿︎ Mercury07:41 – 09:05
- 4☽︎ Moon09:05 – 10:28
- 5♄︎ Saturn10:28 – 11:51
- 6♃︎ Jupiter11:51 – 13:14
- 7♂︎ Mars13:14 – 14:37
- 8☉︎ Sun14:37 – 16:00
- 9♀︎ Venus16:00 – 17:24
- 10☿︎ Mercury17:24 – 18:47
- 11☽︎ Moon18:47 – 20:10
- 12♄︎ Saturn20:10 – 21:33
Night
- 1♃︎ Jupiter21:33 – 22:10
- 2♂︎ Mars22:10 – 22:47
- 3☉︎ Sun22:47 – 23:24
- 4♀︎ Venus23:24 – 00:00
- 5☿︎ Mercury00:00 – 00:37
- 6☽︎ Moon00:37 – 01:14
- 7♄︎ Saturn01:14 – 01:51
- 8♃︎ Jupiter01:51 – 02:28
- 9♂︎ Mars02:28 – 03:05
- 10☉︎ Sun03:05 – 03:42
- 11♀︎ Venus03:42 – 04:18
- 12☿︎ Mercury04:18 – 04:55
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 21 June 2026, the Sun rises at 04:55 and sets at 21:33: the day lasts 16h 38m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:55, lasts 7h 22m: twelve night hours of 37 min.
Which planet rules the first hour that day?
The Sun, from 04:55 to 06:18: 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.