Planetary hours
in Graz.
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, 9 December 2025: day of Mars
- Sunrise
- 07:32
- Sunset
- 16:08
- Next sunrise
- 07:33
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Vienna).
Day
- 1♂︎ Mars07:32 – 08:15
- 2☉︎ Sun08:15 – 08:58
- 3♀︎ Venus08:58 – 09:41
- 4☿︎ Mercury09:41 – 10:24
- 5☽︎ Moon10:24 – 11:07
- 6♄︎ Saturn11:07 – 11:50
- 7♃︎ Jupiter11:50 – 12:33
- 8♂︎ Mars12:33 – 13:16
- 9☉︎ Sun13:16 – 13:59
- 10♀︎ Venus13:59 – 14:42
- 11☿︎ Mercury14:42 – 15:25
- 12☽︎ Moon15:25 – 16:08
Night
- 1♄︎ Saturn16:08 – 17:25
- 2♃︎ Jupiter17:25 – 18:42
- 3♂︎ Mars18:42 – 19:59
- 4☉︎ Sun19:59 – 21:16
- 5♀︎ Venus21:16 – 22:33
- 6☿︎ Mercury22:33 – 23:51
- 7☽︎ Moon23:51 – 01:08
- 8♄︎ Saturn01:08 – 02:25
- 9♃︎ Jupiter02:25 – 03:42
- 10♂︎ Mars03:42 – 04:59
- 11☉︎ Sun04:59 – 06:16
- 12♀︎ Venus06:16 – 07:33
Other cities · Austria
Questions
How are the planetary hours calculated in Graz?
On Tuesday, 9 December 2025, the Sun rises at 07:32 and sets at 16:08: the day lasts 8h 36m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:33, lasts 15h 25m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 07:32 to 08:15: 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.