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 Thursday, 20 August 2026: day of Jupiter
- Sunrise
- 05:55
- Sunset
- 19:59
- Next sunrise
- 05:56
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Vienna).
Day
- 1♃︎ Jupiter05:55 – 07:05
- 2♂︎ Mars07:05 – 08:15
- 3☉︎ Sun08:15 – 09:26
- 4♀︎ Venus09:26 – 10:36
- 5☿︎ Mercury10:36 – 11:46
- 6☽︎ Moon11:46 – 12:57
- 7♄︎ Saturn12:57 – 14:07
- 8♃︎ Jupiter14:07 – 15:17
- 9♂︎ Mars15:17 – 16:28
- 10☉︎ Sun16:28 – 17:38
- 11♀︎ Venus17:38 – 18:48
- 12☿︎ Mercury18:48 – 19:59
Night
- 1☽︎ Moon19:59 – 20:48
- 2♄︎ Saturn20:48 – 21:38
- 3♃︎ Jupiter21:38 – 22:28
- 4♂︎ Mars22:28 – 23:18
- 5☉︎ Sun23:18 – 00:07
- 6♀︎ Venus00:07 – 00:57
- 7☿︎ Mercury00:57 – 01:47
- 8☽︎ Moon01:47 – 02:37
- 9♄︎ Saturn02:37 – 03:27
- 10♃︎ Jupiter03:27 – 04:16
- 11♂︎ Mars04:16 – 05:06
- 12☉︎ Sun05:06 – 05:56
Other cities · Austria
Questions
How are the planetary hours calculated in Donaustadt?
On Thursday, 20 August 2026, the Sun rises at 05:55 and sets at 19:59: the day lasts 14h 04m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:56, lasts 9h 57m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Jupiter, from 05:55 to 07:05: 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.
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.