Planetary hours
in Vienna.
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 Friday, 31 July 2026: day of Venus
- Sunrise
- 05:28
- Sunset
- 20:32
- Next sunrise
- 05:29
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Vienna).
Day
- 1♀︎ Venus05:28 – 06:43
- 2☿︎ Mercury06:43 – 07:59
- 3☽︎ Moon07:59 – 09:14
- 4♄︎ Saturn09:14 – 10:29
- 5♃︎ Jupiter10:29 – 11:45
- 6♂︎ Mars11:45 – 13:00
- 7☉︎ Sun13:00 – 14:15
- 8♀︎ Venus14:15 – 15:31
- 9☿︎ Mercury15:31 – 16:46
- 10☽︎ Moon16:46 – 18:01
- 11♄︎ Saturn18:01 – 19:17
- 12♃︎ Jupiter19:17 – 20:32
Night
- 1♂︎ Mars20:32 – 21:17
- 2☉︎ Sun21:17 – 22:02
- 3♀︎ Venus22:02 – 22:46
- 4☿︎ Mercury22:46 – 23:31
- 5☽︎ Moon23:31 – 00:16
- 6♄︎ Saturn00:16 – 01:01
- 7♃︎ Jupiter01:01 – 01:45
- 8♂︎ Mars01:45 – 02:30
- 9☉︎ Sun02:30 – 03:15
- 10♀︎ Venus03:15 – 04:00
- 11☿︎ Mercury04:00 – 04:45
- 12☽︎ Moon04:45 – 05:29
Other cities · Austria
Questions
How are the planetary hours calculated in Vienna?
On Friday, 31 July 2026, the Sun rises at 05:28 and sets at 20:32: the day lasts 15h 04m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:29, lasts 8h 57m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Venus, from 05:28 to 06:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.