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, 4 October 2026: day of the Sun
- Sunrise
- 07:18
- Sunset
- 18:43
- Next sunrise
- 07:19
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Europe/London).
Day
- 1☉︎ Sun07:18 – 08:15
- 2♀︎ Venus08:15 – 09:12
- 3☿︎ Mercury09:12 – 10:09
- 4☽︎ Moon10:09 – 11:06
- 5♄︎ Saturn11:06 – 12:03
- 6♃︎ Jupiter12:03 – 13:00
- 7♂︎ Mars13:00 – 13:58
- 8☉︎ Sun13:58 – 14:55
- 9♀︎ Venus14:55 – 15:52
- 10☿︎ Mercury15:52 – 16:49
- 11☽︎ Moon16:49 – 17:46
- 12♄︎ Saturn17:46 – 18:43
Night
- 1♃︎ Jupiter18:43 – 19:46
- 2♂︎ Mars19:46 – 20:49
- 3☉︎ Sun20:49 – 21:52
- 4♀︎ Venus21:52 – 22:55
- 5☿︎ Mercury22:55 – 23:58
- 6☽︎ Moon23:58 – 01:01
- 7♄︎ Saturn01:01 – 02:04
- 8♃︎ Jupiter02:04 – 03:07
- 9♂︎ Mars03:07 – 04:10
- 10☉︎ Sun04:10 – 05:13
- 11♀︎ Venus05:13 – 06:16
- 12☿︎ Mercury06:16 – 07:19
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Sunday, 4 October 2026, the Sun rises at 07:18 and sets at 18:43: the day lasts 11h 26m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:19, lasts 12h 36m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
The Sun, from 07:18 to 08:15: 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.