Planetary hours
in Porto Alegre.
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, 12 October 2026: day of the Moon
- Sunrise
- 05:50
- Sunset
- 18:33
- Next sunrise
- 05:49
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Sao_Paulo).
Day
- 1☽︎ Moon05:50 – 06:53
- 2♄︎ Saturn06:53 – 07:57
- 3♃︎ Jupiter07:57 – 09:00
- 4♂︎ Mars09:00 – 10:04
- 5☉︎ Sun10:04 – 11:08
- 6♀︎ Venus11:08 – 12:11
- 7☿︎ Mercury12:11 – 13:15
- 8☽︎ Moon13:15 – 14:18
- 9♄︎ Saturn14:18 – 15:22
- 10♃︎ Jupiter15:22 – 16:25
- 11♂︎ Mars16:25 – 17:29
- 12☉︎ Sun17:29 – 18:33
Night
- 1♀︎ Venus18:33 – 19:29
- 2☿︎ Mercury19:29 – 20:25
- 3☽︎ Moon20:25 – 21:22
- 4♄︎ Saturn21:22 – 22:18
- 5♃︎ Jupiter22:18 – 23:14
- 6♂︎ Mars23:14 – 00:11
- 7☉︎ Sun00:11 – 01:07
- 8♀︎ Venus01:07 – 02:03
- 9☿︎ Mercury02:03 – 03:00
- 10☽︎ Moon03:00 – 03:56
- 11♄︎ Saturn03:56 – 04:52
- 12♃︎ Jupiter04:52 – 05:49
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Monday, 12 October 2026, the Sun rises at 05:50 and sets at 18:33: the day lasts 12h 43m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:49, lasts 11h 16m: twelve night hours of 56 min.
Which planet rules the first hour that day?
The Moon, from 05:50 to 06:53: 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.