Planetary hours
in Donaustadt.
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 Monday, 21 December 2026: day of the Moon
- Sunrise
- 07:42
- Sunset
- 16:02
- Next sunrise
- 07:42
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Vienna).
Day
- 1☽︎ Moon07:42 – 08:23
- 2♄︎ Saturn08:23 – 09:05
- 3♃︎ Jupiter09:05 – 09:47
- 4♂︎ Mars09:47 – 10:28
- 5☉︎ Sun10:28 – 11:10
- 6♀︎ Venus11:10 – 11:52
- 7☿︎ Mercury11:52 – 12:33
- 8☽︎ Moon12:33 – 13:15
- 9♄︎ Saturn13:15 – 13:57
- 10♃︎ Jupiter13:57 – 14:38
- 11♂︎ Mars14:38 – 15:20
- 12☉︎ Sun15:20 – 16:02
Night
- 1♀︎ Venus16:02 – 17:20
- 2☿︎ Mercury17:20 – 18:39
- 3☽︎ Moon18:39 – 19:57
- 4♄︎ Saturn19:57 – 21:15
- 5♃︎ Jupiter21:15 – 22:34
- 6♂︎ Mars22:34 – 23:52
- 7☉︎ Sun23:52 – 01:10
- 8♀︎ Venus01:10 – 02:29
- 9☿︎ Mercury02:29 – 03:47
- 10☽︎ Moon03:47 – 05:05
- 11♄︎ Saturn05:05 – 06:24
- 12♃︎ Jupiter06:24 – 07:42
Other cities · Austria
Questions
How are the planetary hours calculated in Donaustadt?
On Monday, 21 December 2026, the Sun rises at 07:42 and sets at 16:02: the day lasts 8h 20m, that is twelve day hours of 42 min. The night, until the next sunrise at 07:42, lasts 15h 40m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
The Moon, from 07:42 to 08:23: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.