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 Friday, 28 August 2026: day of Venus
- Sunrise
- 06:18
- Sunset
- 20:07
- Next sunrise
- 06:20
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/London).
Day
- 1♀︎ Venus06:18 – 07:27
- 2☿︎ Mercury07:27 – 08:37
- 3☽︎ Moon08:37 – 09:46
- 4♄︎ Saturn09:46 – 10:55
- 5♃︎ Jupiter10:55 – 12:04
- 6♂︎ Mars12:04 – 13:13
- 7☉︎ Sun13:13 – 14:22
- 8♀︎ Venus14:22 – 15:31
- 9☿︎ Mercury15:31 – 16:40
- 10☽︎ Moon16:40 – 17:49
- 11♄︎ Saturn17:49 – 18:58
- 12♃︎ Jupiter18:58 – 20:07
Night
- 1♂︎ Mars20:07 – 20:58
- 2☉︎ Sun20:58 – 21:50
- 3♀︎ Venus21:50 – 22:41
- 4☿︎ Mercury22:41 – 23:32
- 5☽︎ Moon23:32 – 00:23
- 6♄︎ Saturn00:23 – 01:14
- 7♃︎ Jupiter01:14 – 02:05
- 8♂︎ Mars02:05 – 02:56
- 9☉︎ Sun02:56 – 03:47
- 10♀︎ Venus03:47 – 04:38
- 11☿︎ Mercury04:38 – 05:29
- 12☽︎ Moon05:29 – 06:20
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Friday, 28 August 2026, the Sun rises at 06:18 and sets at 20:07: the day lasts 13h 49m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:20, lasts 10h 13m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Venus, from 06:18 to 07:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.