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 Sunday, 6 December 2026: day of the Sun
- Sunrise
- 05:33
- Sunset
- 19:56
- Next sunrise
- 05:33
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun05:33 – 06:45
- 2♀︎ Venus06:45 – 07:57
- 3☿︎ Mercury07:57 – 09:09
- 4☽︎ Moon09:09 – 10:20
- 5♄︎ Saturn10:20 – 11:32
- 6♃︎ Jupiter11:32 – 12:44
- 7♂︎ Mars12:44 – 13:56
- 8☉︎ Sun13:56 – 15:08
- 9♀︎ Venus15:08 – 16:20
- 10☿︎ Mercury16:20 – 17:32
- 11☽︎ Moon17:32 – 18:44
- 12♄︎ Saturn18:44 – 19:56
Night
- 1♃︎ Jupiter19:56 – 20:44
- 2♂︎ Mars20:44 – 21:32
- 3☉︎ Sun21:32 – 22:20
- 4♀︎ Venus22:20 – 23:08
- 5☿︎ Mercury23:08 – 23:56
- 6☽︎ Moon23:56 – 00:44
- 7♄︎ Saturn00:44 – 01:32
- 8♃︎ Jupiter01:32 – 02:20
- 9♂︎ Mars02:20 – 03:09
- 10☉︎ Sun03:09 – 03:57
- 11♀︎ Venus03:57 – 04:45
- 12☿︎ Mercury04:45 – 05:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Sunday, 6 December 2026, the Sun rises at 05:33 and sets at 19:56: the day lasts 14h 23m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:33, lasts 9h 37m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Sun, 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: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.