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Planetary hours · Graz (Austria)

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 Thursday, 18 December 2025: day of Jupiter

Sunrise
07:39
Sunset
16:10
Next sunrise
07:40

A day hour lasts 43 min; a night hour, 1h 18m. Local time (Europe/Vienna).

Day

  1. 1♃︎ Jupiter07:39 – 08:22
  2. 2♂︎ Mars08:22 – 09:04
  3. 3☉︎ Sun09:04 – 09:47
  4. 4♀︎ Venus09:47 – 10:29
  5. 5☿︎ Mercury10:29 – 11:12
  6. 6☽︎ Moon11:12 – 11:54
  7. 7♄︎ Saturn11:54 – 12:37
  8. 8♃︎ Jupiter12:37 – 13:19
  9. 9♂︎ Mars13:19 – 14:02
  10. 10☉︎ Sun14:02 – 14:45
  11. 11♀︎ Venus14:45 – 15:27
  12. 12☿︎ Mercury15:27 – 16:10

Night

  1. 1☽︎ Moon16:10 – 17:27
  2. 2♄︎ Saturn17:27 – 18:45
  3. 3♃︎ Jupiter18:45 – 20:02
  4. 4♂︎ Mars20:02 – 21:20
  5. 5☉︎ Sun21:20 – 22:37
  6. 6♀︎ Venus22:37 – 23:55
  7. 7☿︎ Mercury23:55 – 01:12
  8. 8☽︎ Moon01:12 – 02:30
  9. 9♄︎ Saturn02:30 – 03:47
  10. 10♃︎ Jupiter03:47 – 05:05
  11. 11♂︎ Mars05:05 – 06:22
  12. 12☉︎ Sun06:22 – 07:40

Other cities · Austria

Questions

How are the planetary hours calculated in Graz?

On Thursday, 18 December 2025, the Sun rises at 07:39 and sets at 16:10: the day lasts 8h 30m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:40, lasts 15h 30m: twelve night hours of 1h 18m.

Which planet rules the first hour that day?

Jupiter, from 07:39 to 08:22: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.

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Calendars

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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.