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 Wednesday, 23 December 2026: day of Mercury
- Sunrise
- 05:21
- Sunset
- 19:26
- Next sunrise
- 05:22
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Sao_Paulo).
Day
- 1☿︎ Mercury05:21 – 06:31
- 2☽︎ Moon06:31 – 07:42
- 3♄︎ Saturn07:42 – 08:52
- 4♃︎ Jupiter08:52 – 10:03
- 5♂︎ Mars10:03 – 11:13
- 6☉︎ Sun11:13 – 12:24
- 7♀︎ Venus12:24 – 13:34
- 8☿︎ Mercury13:34 – 14:44
- 9☽︎ Moon14:44 – 15:55
- 10♄︎ Saturn15:55 – 17:05
- 11♃︎ Jupiter17:05 – 18:16
- 12♂︎ Mars18:16 – 19:26
Night
- 1☉︎ Sun19:26 – 20:16
- 2♀︎ Venus20:16 – 21:05
- 3☿︎ Mercury21:05 – 21:55
- 4☽︎ Moon21:55 – 22:45
- 5♄︎ Saturn22:45 – 23:34
- 6♃︎ Jupiter23:34 – 00:24
- 7♂︎ Mars00:24 – 01:13
- 8☉︎ Sun01:13 – 02:03
- 9♀︎ Venus02:03 – 02:53
- 10☿︎ Mercury02:53 – 03:42
- 11☽︎ Moon03:42 – 04:32
- 12♄︎ Saturn04:32 – 05:22
Other cities · Brazil
Questions
How are the planetary hours calculated in Porto Alegre?
On Wednesday, 23 December 2026, the Sun rises at 05:21 and sets at 19:26: the day lasts 14h 05m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:22, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 05:21 to 06:31: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.