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, 20 October 2026: day of Mars
- Sunrise
- 07:45
- Sunset
- 18:09
- Next sunrise
- 07:46
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/London).
Day
- 1♂︎ Mars07:45 – 08:37
- 2☉︎ Sun08:37 – 09:29
- 3♀︎ Venus09:29 – 10:21
- 4☿︎ Mercury10:21 – 11:13
- 5☽︎ Moon11:13 – 12:05
- 6♄︎ Saturn12:05 – 12:57
- 7♃︎ Jupiter12:57 – 13:49
- 8♂︎ Mars13:49 – 14:41
- 9☉︎ Sun14:41 – 15:33
- 10♀︎ Venus15:33 – 16:25
- 11☿︎ Mercury16:25 – 17:17
- 12☽︎ Moon17:17 – 18:09
Night
- 1♄︎ Saturn18:09 – 19:17
- 2♃︎ Jupiter19:17 – 20:25
- 3♂︎ Mars20:25 – 21:33
- 4☉︎ Sun21:33 – 22:41
- 5♀︎ Venus22:41 – 23:49
- 6☿︎ Mercury23:49 – 00:57
- 7☽︎ Moon00:57 – 02:06
- 8♄︎ Saturn02:06 – 03:14
- 9♃︎ Jupiter03:14 – 04:22
- 10♂︎ Mars04:22 – 05:30
- 11☉︎ Sun05:30 – 06:38
- 12♀︎ Venus06:38 – 07:46
Other cities · United Kingdom
Questions
How are the planetary hours calculated in Cardiff?
On Tuesday, 20 October 2026, the Sun rises at 07:45 and sets at 18:09: the day lasts 10h 24m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:46, lasts 13h 38m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 07:45 to 08:37: 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.