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 Thursday, 8 October 2026: day of Jupiter
- Sunrise
- 05:54
- Sunset
- 18:30
- Next sunrise
- 05:53
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/Sao_Paulo).
Day
- 1♃︎ Jupiter05:54 – 06:57
- 2♂︎ Mars06:57 – 08:00
- 3☉︎ Sun08:00 – 09:03
- 4♀︎ Venus09:03 – 10:06
- 5☿︎ Mercury10:06 – 11:09
- 6☽︎ Moon11:09 – 12:12
- 7♄︎ Saturn12:12 – 13:15
- 8♃︎ Jupiter13:15 – 14:18
- 9♂︎ Mars14:18 – 15:21
- 10☉︎ Sun15:21 – 16:24
- 11♀︎ Venus16:24 – 17:27
- 12☿︎ Mercury17:27 – 18:30
Night
- 1☽︎ Moon18:30 – 19:27
- 2♄︎ Saturn19:27 – 20:24
- 3♃︎ Jupiter20:24 – 21:21
- 4♂︎ Mars21:21 – 22:18
- 5☉︎ Sun22:18 – 23:15
- 6♀︎ Venus23:15 – 00:12
- 7☿︎ Mercury00:12 – 01:08
- 8☽︎ Moon01:08 – 02:05
- 9♄︎ Saturn02:05 – 03:02
- 10♃︎ Jupiter03:02 – 03:59
- 11♂︎ Mars03:59 – 04:56
- 12☉︎ Sun04:56 – 05:53
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Thursday, 8 October 2026, the Sun rises at 05:54 and sets at 18:30: the day lasts 12h 36m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:53, lasts 11h 23m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Jupiter, from 05:54 to 06:57: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.