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, 25 January 2026: day of the Sun
- Sunrise
- 08:00
- Sunset
- 16:49
- Next sunrise
- 07:59
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/London).
Day
- 1☉︎ Sun08:00 – 08:44
- 2♀︎ Venus08:44 – 09:28
- 3☿︎ Mercury09:28 – 10:13
- 4☽︎ Moon10:13 – 10:57
- 5♄︎ Saturn10:57 – 11:41
- 6♃︎ Jupiter11:41 – 12:25
- 7♂︎ Mars12:25 – 13:09
- 8☉︎ Sun13:09 – 13:53
- 9♀︎ Venus13:53 – 14:37
- 10☿︎ Mercury14:37 – 15:21
- 11☽︎ Moon15:21 – 16:05
- 12♄︎ Saturn16:05 – 16:49
Night
- 1♃︎ Jupiter16:49 – 18:05
- 2♂︎ Mars18:05 – 19:21
- 3☉︎ Sun19:21 – 20:37
- 4♀︎ Venus20:37 – 21:53
- 5☿︎ Mercury21:53 – 23:08
- 6☽︎ Moon23:08 – 00:24
- 7♄︎ Saturn00:24 – 01:40
- 8♃︎ Jupiter01:40 – 02:56
- 9♂︎ Mars02:56 – 04:12
- 10☉︎ Sun04:12 – 05:27
- 11♀︎ Venus05:27 – 06:43
- 12☿︎ Mercury06:43 – 07:59
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 25 January 2026, the Sun rises at 08:00 and sets at 16:49: the day lasts 8h 49m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:59, lasts 15h 10m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
The Sun, from 08:00 to 08:44: 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.