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 Wednesday, 8 July 2026: day of Mercury
- Sunrise
- 05:05
- Sunset
- 21:29
- Next sunrise
- 05:06
A day hour lasts 1h 22m; a night hour, 38 min. Local time (Europe/London).
Day
- 1☿︎ Mercury05:05 – 06:27
- 2☽︎ Moon06:27 – 07:49
- 3♄︎ Saturn07:49 – 09:11
- 4♃︎ Jupiter09:11 – 10:33
- 5♂︎ Mars10:33 – 11:55
- 6☉︎ Sun11:55 – 13:17
- 7♀︎ Venus13:17 – 14:39
- 8☿︎ Mercury14:39 – 16:01
- 9☽︎ Moon16:01 – 17:23
- 10♄︎ Saturn17:23 – 18:45
- 11♃︎ Jupiter18:45 – 20:07
- 12♂︎ Mars20:07 – 21:29
Night
- 1☉︎ Sun21:29 – 22:07
- 2♀︎ Venus22:07 – 22:45
- 3☿︎ Mercury22:45 – 23:23
- 4☽︎ Moon23:23 – 00:01
- 5♄︎ Saturn00:01 – 00:39
- 6♃︎ Jupiter00:39 – 01:18
- 7♂︎ Mars01:18 – 01:56
- 8☉︎ Sun01:56 – 02:34
- 9♀︎ Venus02:34 – 03:12
- 10☿︎ Mercury03:12 – 03:50
- 11☽︎ Moon03:50 – 04:28
- 12♄︎ Saturn04:28 – 05:06
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 8 July 2026, the Sun rises at 05:05 and sets at 21:29: the day lasts 16h 24m, that is twelve day hours of 1h 22m. The night, until the next sunrise at 05:06, lasts 7h 37m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Mercury, from 05:05 to 06:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.