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, 17 June 2026: day of Mercury
- Sunrise
- 04:55
- Sunset
- 21:32
- Next sunrise
- 04:55
A day hour lasts 1h 23m; a night hour, 37 min. Local time (Europe/London).
Day
- 1☿︎ Mercury04:55 – 06:18
- 2☽︎ Moon06:18 – 07:41
- 3♄︎ Saturn07:41 – 09:04
- 4♃︎ Jupiter09:04 – 10:27
- 5♂︎ Mars10:27 – 11:50
- 6☉︎ Sun11:50 – 13:13
- 7♀︎ Venus13:13 – 14:36
- 8☿︎ Mercury14:36 – 15:59
- 9☽︎ Moon15:59 – 17:23
- 10♄︎ Saturn17:23 – 18:46
- 11♃︎ Jupiter18:46 – 20:09
- 12♂︎ Mars20:09 – 21:32
Night
- 1☉︎ Sun21:32 – 22:09
- 2♀︎ Venus22:09 – 22:46
- 3☿︎ Mercury22:46 – 23:23
- 4☽︎ Moon23:23 – 23:59
- 5♄︎ Saturn23:59 – 00:36
- 6♃︎ Jupiter00:36 – 01:13
- 7♂︎ Mars01:13 – 01:50
- 8☉︎ Sun01:50 – 02:27
- 9♀︎ Venus02:27 – 03:04
- 10☿︎ Mercury03:04 – 03:41
- 11☽︎ Moon03:41 – 04:18
- 12♄︎ Saturn04:18 – 04:55
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 17 June 2026, the Sun rises at 04:55 and sets at 21:32: the day lasts 16h 37m, that is twelve day hours of 1h 23m. The night, until the next sunrise at 04:55, lasts 7h 23m: twelve night hours of 37 min.
Which planet rules the first hour that day?
Mercury, 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: 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.