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 Sunday, 13 December 2026: day of the Sun
- Sunrise
- 07:35
- Sunset
- 16:08
- Next sunrise
- 07:36
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Vienna).
Day
- 1☉︎ Sun07:35 – 08:18
- 2♀︎ Venus08:18 – 09:01
- 3☿︎ Mercury09:01 – 09:44
- 4☽︎ Moon09:44 – 10:26
- 5♄︎ Saturn10:26 – 11:09
- 6♃︎ Jupiter11:09 – 11:52
- 7♂︎ Mars11:52 – 12:35
- 8☉︎ Sun12:35 – 13:17
- 9♀︎ Venus13:17 – 14:00
- 10☿︎ Mercury14:00 – 14:43
- 11☽︎ Moon14:43 – 15:26
- 12♄︎ Saturn15:26 – 16:08
Night
- 1♃︎ Jupiter16:08 – 17:26
- 2♂︎ Mars17:26 – 18:43
- 3☉︎ Sun18:43 – 20:00
- 4♀︎ Venus20:00 – 21:18
- 5☿︎ Mercury21:18 – 22:35
- 6☽︎ Moon22:35 – 23:52
- 7♄︎ Saturn23:52 – 01:10
- 8♃︎ Jupiter01:10 – 02:27
- 9♂︎ Mars02:27 – 03:44
- 10☉︎ Sun03:44 – 05:01
- 11♀︎ Venus05:01 – 06:19
- 12☿︎ Mercury06:19 – 07:36
Other cities · Austria
Questions
How are the planetary hours calculated in Graz?
On Sunday, 13 December 2026, the Sun rises at 07:35 and sets at 16:08: the day lasts 8h 33m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:36, lasts 15h 28m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
The Sun, from 07:35 to 08:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.