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, 31 July 2026: day of Venus
- Sunrise
- 07:11
- Sunset
- 17:51
- Next sunrise
- 07:10
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Sao_Paulo).
Day
- 1♀︎ Venus07:11 – 08:04
- 2☿︎ Mercury08:04 – 08:57
- 3☽︎ Moon08:57 – 09:51
- 4♄︎ Saturn09:51 – 10:44
- 5♃︎ Jupiter10:44 – 11:38
- 6♂︎ Mars11:38 – 12:31
- 7☉︎ Sun12:31 – 13:24
- 8♀︎ Venus13:24 – 14:18
- 9☿︎ Mercury14:18 – 15:11
- 10☽︎ Moon15:11 – 16:05
- 11♄︎ Saturn16:05 – 16:58
- 12♃︎ Jupiter16:58 – 17:51
Night
- 1♂︎ Mars17:51 – 18:58
- 2☉︎ Sun18:58 – 20:04
- 3♀︎ Venus20:04 – 21:11
- 4☿︎ Mercury21:11 – 22:18
- 5☽︎ Moon22:18 – 23:24
- 6♄︎ Saturn23:24 – 00:31
- 7♃︎ Jupiter00:31 – 01:37
- 8♂︎ Mars01:37 – 02:44
- 9☉︎ Sun02:44 – 03:50
- 10♀︎ Venus03:50 – 04:57
- 11☿︎ Mercury04:57 – 06:03
- 12☽︎ Moon06:03 – 07:10
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Friday, 31 July 2026, the Sun rises at 07:11 and sets at 17:51: the day lasts 10h 41m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:10, lasts 13h 18m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Venus, from 07:11 to 08:04: 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.