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, 19 August 2026: day of Mercury
- Sunrise
- 06:04
- Sunset
- 20:27
- Next sunrise
- 06:06
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/London).
Day
- 1☿︎ Mercury06:04 – 07:16
- 2☽︎ Moon07:16 – 08:28
- 3♄︎ Saturn08:28 – 09:40
- 4♃︎ Jupiter09:40 – 10:52
- 5♂︎ Mars10:52 – 12:03
- 6☉︎ Sun12:03 – 13:15
- 7♀︎ Venus13:15 – 14:27
- 8☿︎ Mercury14:27 – 15:39
- 9☽︎ Moon15:39 – 16:51
- 10♄︎ Saturn16:51 – 18:03
- 11♃︎ Jupiter18:03 – 19:15
- 12♂︎ Mars19:15 – 20:27
Night
- 1☉︎ Sun20:27 – 21:15
- 2♀︎ Venus21:15 – 22:03
- 3☿︎ Mercury22:03 – 22:51
- 4☽︎ Moon22:51 – 23:40
- 5♄︎ Saturn23:40 – 00:28
- 6♃︎ Jupiter00:28 – 01:16
- 7♂︎ Mars01:16 – 02:04
- 8☉︎ Sun02:04 – 02:53
- 9♀︎ Venus02:53 – 03:41
- 10☿︎ Mercury03:41 – 04:29
- 11☽︎ Moon04:29 – 05:17
- 12♄︎ Saturn05:17 – 06:06
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Wednesday, 19 August 2026, the Sun rises at 06:04 and sets at 20:27: the day lasts 14h 23m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:06, lasts 9h 39m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mercury, from 06:04 to 07:16: 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.