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 Tuesday, 4 August 2026: day of Mars
- Sunrise
- 05:41
- Sunset
- 20:55
- Next sunrise
- 05:42
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/London).
Day
- 1♂︎ Mars05:41 – 06:57
- 2☉︎ Sun06:57 – 08:13
- 3♀︎ Venus08:13 – 09:29
- 4☿︎ Mercury09:29 – 10:45
- 5☽︎ Moon10:45 – 12:02
- 6♄︎ Saturn12:02 – 13:18
- 7♃︎ Jupiter13:18 – 14:34
- 8♂︎ Mars14:34 – 15:50
- 9☉︎ Sun15:50 – 17:06
- 10♀︎ Venus17:06 – 18:23
- 11☿︎ Mercury18:23 – 19:39
- 12☽︎ Moon19:39 – 20:55
Night
- 1♄︎ Saturn20:55 – 21:39
- 2♃︎ Jupiter21:39 – 22:23
- 3♂︎ Mars22:23 – 23:07
- 4☉︎ Sun23:07 – 23:51
- 5♀︎ Venus23:51 – 00:35
- 6☿︎ Mercury00:35 – 01:19
- 7☽︎ Moon01:19 – 02:02
- 8♄︎ Saturn02:02 – 02:46
- 9♃︎ Jupiter02:46 – 03:30
- 10♂︎ Mars03:30 – 04:14
- 11☉︎ Sun04:14 – 04:58
- 12♀︎ Venus04:58 – 05:42
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Tuesday, 4 August 2026, the Sun rises at 05:41 and sets at 20:55: the day lasts 15h 15m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:42, lasts 8h 47m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mars, from 05:41 to 06:57: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.