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 Saturday, 10 October 2026: day of Saturn
- Sunrise
- 05:52
- Sunset
- 18:31
- Next sunrise
- 05:51
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/Sao_Paulo).
Day
- 1♄︎ Saturn05:52 – 06:55
- 2♃︎ Jupiter06:55 – 07:59
- 3♂︎ Mars07:59 – 09:02
- 4☉︎ Sun09:02 – 10:05
- 5♀︎ Venus10:05 – 11:08
- 6☿︎ Mercury11:08 – 12:12
- 7☽︎ Moon12:12 – 13:15
- 8♄︎ Saturn13:15 – 14:18
- 9♃︎ Jupiter14:18 – 15:21
- 10♂︎ Mars15:21 – 16:25
- 11☉︎ Sun16:25 – 17:28
- 12♀︎ Venus17:28 – 18:31
Night
- 1☿︎ Mercury18:31 – 19:28
- 2☽︎ Moon19:28 – 20:25
- 3♄︎ Saturn20:25 – 21:21
- 4♃︎ Jupiter21:21 – 22:18
- 5♂︎ Mars22:18 – 23:14
- 6☉︎ Sun23:14 – 00:11
- 7♀︎ Venus00:11 – 01:08
- 8☿︎ Mercury01:08 – 02:04
- 9☽︎ Moon02:04 – 03:01
- 10♄︎ Saturn03:01 – 03:58
- 11♃︎ Jupiter03:58 – 04:54
- 12♂︎ Mars04:54 – 05:51
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Saturday, 10 October 2026, the Sun rises at 05:52 and sets at 18:31: the day lasts 12h 39m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:51, lasts 11h 20m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Saturn, from 05:52 to 06:55: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.