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 Tuesday, 1 December 2026: day of Mars
- Sunrise
- 05:33
- Sunset
- 19:51
- Next sunrise
- 05:33
A day hour lasts 1h 11m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars05:33 – 06:45
- 2☉︎ Sun06:45 – 07:56
- 3♀︎ Venus07:56 – 09:08
- 4☿︎ Mercury09:08 – 10:19
- 5☽︎ Moon10:19 – 11:31
- 6♄︎ Saturn11:31 – 12:42
- 7♃︎ Jupiter12:42 – 13:54
- 8♂︎ Mars13:54 – 15:05
- 9☉︎ Sun15:05 – 16:17
- 10♀︎ Venus16:17 – 17:28
- 11☿︎ Mercury17:28 – 18:40
- 12☽︎ Moon18:40 – 19:51
Night
- 1♄︎ Saturn19:51 – 20:40
- 2♃︎ Jupiter20:40 – 21:28
- 3♂︎ Mars21:28 – 22:17
- 4☉︎ Sun22:17 – 23:05
- 5♀︎ Venus23:05 – 23:54
- 6☿︎ Mercury23:54 – 00:42
- 7☽︎ Moon00:42 – 01:31
- 8♄︎ Saturn01:31 – 02:19
- 9♃︎ Jupiter02:19 – 03:08
- 10♂︎ Mars03:08 – 03:56
- 11☉︎ Sun03:56 – 04:45
- 12♀︎ Venus04:45 – 05:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Tuesday, 1 December 2026, the Sun rises at 05:33 and sets at 19:51: the day lasts 14h 18m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:33, lasts 9h 42m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mars, 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: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.