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 Wednesday, 29 October 2025: day of Mercury
- Sunrise
- 06:35
- Sunset
- 16:40
- Next sunrise
- 06:36
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Europe/Vienna).
Day
- 1☿︎ Mercury06:35 – 07:25
- 2☽︎ Moon07:25 – 08:16
- 3♄︎ Saturn08:16 – 09:06
- 4♃︎ Jupiter09:06 – 09:57
- 5♂︎ Mars09:57 – 10:47
- 6☉︎ Sun10:47 – 11:37
- 7♀︎ Venus11:37 – 12:28
- 8☿︎ Mercury12:28 – 13:18
- 9☽︎ Moon13:18 – 14:09
- 10♄︎ Saturn14:09 – 14:59
- 11♃︎ Jupiter14:59 – 15:49
- 12♂︎ Mars15:49 – 16:40
Night
- 1☉︎ Sun16:40 – 17:50
- 2♀︎ Venus17:50 – 18:59
- 3☿︎ Mercury18:59 – 20:09
- 4☽︎ Moon20:09 – 21:19
- 5♄︎ Saturn21:19 – 22:28
- 6♃︎ Jupiter22:28 – 23:38
- 7♂︎ Mars23:38 – 00:48
- 8☉︎ Sun00:48 – 01:58
- 9♀︎ Venus01:58 – 03:07
- 10☿︎ Mercury03:07 – 04:17
- 11☽︎ Moon04:17 – 05:27
- 12♄︎ Saturn05:27 – 06:36
Other cities · Austria
Questions
How are the planetary hours calculated in Vienna?
On Wednesday, 29 October 2025, the Sun rises at 06:35 and sets at 16:40: the day lasts 10h 05m, that is twelve day hours of 50 min. The night, until the next sunrise at 06:36, lasts 13h 57m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Mercury, from 06:35 to 07:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.