Planetary hours
in Buenos Aires.
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, 3 December 2026: day of Jupiter
- Sunrise
- 05:33
- Sunset
- 19:53
- Next sunrise
- 05:33
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter05:33 – 06:45
- 2♂︎ Mars06:45 – 07:56
- 3☉︎ Sun07:56 – 09:08
- 4♀︎ Venus09:08 – 10:20
- 5☿︎ Mercury10:20 – 11:31
- 6☽︎ Moon11:31 – 12:43
- 7♄︎ Saturn12:43 – 13:55
- 8♃︎ Jupiter13:55 – 15:06
- 9♂︎ Mars15:06 – 16:18
- 10☉︎ Sun16:18 – 17:30
- 11♀︎ Venus17:30 – 18:41
- 12☿︎ Mercury18:41 – 19:53
Night
- 1☽︎ Moon19:53 – 20:41
- 2♄︎ Saturn20:41 – 21:30
- 3♃︎ Jupiter21:30 – 22:18
- 4♂︎ Mars22:18 – 23:06
- 5☉︎ Sun23:06 – 23:55
- 6♀︎ Venus23:55 – 00:43
- 7☿︎ Mercury00:43 – 01:31
- 8☽︎ Moon01:31 – 02:20
- 9♄︎ Saturn02:20 – 03:08
- 10♃︎ Jupiter03:08 – 03:56
- 11♂︎ Mars03:56 – 04:45
- 12☉︎ Sun04:45 – 05:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Thursday, 3 December 2026, the Sun rises at 05:33 and sets at 19:53: the day lasts 14h 20m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:33, lasts 9h 40m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Jupiter, from 05:33 to 06:45: 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.