Planetary hours
in Linz.
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 Tuesday, 21 October 2025: day of Mars
- Sunrise
- 07:31
- Sunset
- 18:02
- Next sunrise
- 07:33
A day hour lasts 53 min; a night hour, 1h 08m. Local time (Europe/Vienna).
Day
- 1♂︎ Mars07:31 – 08:24
- 2☉︎ Sun08:24 – 09:16
- 3♀︎ Venus09:16 – 10:09
- 4☿︎ Mercury10:09 – 11:01
- 5☽︎ Moon11:01 – 11:54
- 6♄︎ Saturn11:54 – 12:47
- 7♃︎ Jupiter12:47 – 13:39
- 8♂︎ Mars13:39 – 14:32
- 9☉︎ Sun14:32 – 15:24
- 10♀︎ Venus15:24 – 16:17
- 11☿︎ Mercury16:17 – 17:09
- 12☽︎ Moon17:09 – 18:02
Night
- 1♄︎ Saturn18:02 – 19:10
- 2♃︎ Jupiter19:10 – 20:17
- 3♂︎ Mars20:17 – 21:25
- 4☉︎ Sun21:25 – 22:32
- 5♀︎ Venus22:32 – 23:40
- 6☿︎ Mercury23:40 – 00:47
- 7☽︎ Moon00:47 – 01:55
- 8♄︎ Saturn01:55 – 03:02
- 9♃︎ Jupiter03:02 – 04:10
- 10♂︎ Mars04:10 – 05:18
- 11☉︎ Sun05:18 – 06:25
- 12♀︎ Venus06:25 – 07:33
Other cities · Austria
Questions
How are the planetary hours calculated in Linz?
On Tuesday, 21 October 2025, the Sun rises at 07:31 and sets at 18:02: the day lasts 10h 31m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:33, lasts 13h 31m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 07:31 to 08:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.