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 Friday, 11 December 2026: day of Venus
- Sunrise
- 05:16
- Sunset
- 19:19
- Next sunrise
- 05:17
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Sao_Paulo).
Day
- 1♀︎ Venus05:16 – 06:27
- 2☿︎ Mercury06:27 – 07:37
- 3☽︎ Moon07:37 – 08:47
- 4♄︎ Saturn08:47 – 09:57
- 5♃︎ Jupiter09:57 – 11:08
- 6♂︎ Mars11:08 – 12:18
- 7☉︎ Sun12:18 – 13:28
- 8♀︎ Venus13:28 – 14:38
- 9☿︎ Mercury14:38 – 15:48
- 10☽︎ Moon15:48 – 16:59
- 11♄︎ Saturn16:59 – 18:09
- 12♃︎ Jupiter18:09 – 19:19
Night
- 1♂︎ Mars19:19 – 20:09
- 2☉︎ Sun20:09 – 20:59
- 3♀︎ Venus20:59 – 21:49
- 4☿︎ Mercury21:49 – 22:38
- 5☽︎ Moon22:38 – 23:28
- 6♄︎ Saturn23:28 – 00:18
- 7♃︎ Jupiter00:18 – 01:08
- 8♂︎ Mars01:08 – 01:57
- 9☉︎ Sun01:57 – 02:47
- 10♀︎ Venus02:47 – 03:37
- 11☿︎ Mercury03:37 – 04:27
- 12☽︎ Moon04:27 – 05:17
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Friday, 11 December 2026, the Sun rises at 05:16 and sets at 19:19: the day lasts 14h 03m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:17, lasts 9h 58m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Venus, from 05:16 to 06:27: 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.