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, 24 December 2026: day of Jupiter
- Sunrise
- 05:38
- Sunset
- 20:07
- Next sunrise
- 05:39
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter05:38 – 06:51
- 2♂︎ Mars06:51 – 08:03
- 3☉︎ Sun08:03 – 09:15
- 4♀︎ Venus09:15 – 10:28
- 5☿︎ Mercury10:28 – 11:40
- 6☽︎ Moon11:40 – 12:53
- 7♄︎ Saturn12:53 – 14:05
- 8♃︎ Jupiter14:05 – 15:17
- 9♂︎ Mars15:17 – 16:30
- 10☉︎ Sun16:30 – 17:42
- 11♀︎ Venus17:42 – 18:55
- 12☿︎ Mercury18:55 – 20:07
Night
- 1☽︎ Moon20:07 – 20:55
- 2♄︎ Saturn20:55 – 21:42
- 3♃︎ Jupiter21:42 – 22:30
- 4♂︎ Mars22:30 – 23:18
- 5☉︎ Sun23:18 – 00:05
- 6♀︎ Venus00:05 – 00:53
- 7☿︎ Mercury00:53 – 01:41
- 8☽︎ Moon01:41 – 02:28
- 9♄︎ Saturn02:28 – 03:16
- 10♃︎ Jupiter03:16 – 04:04
- 11♂︎ Mars04:04 – 04:51
- 12☉︎ Sun04:51 – 05:39
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Thursday, 24 December 2026, the Sun rises at 05:38 and sets at 20:07: the day lasts 14h 29m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:39, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Jupiter, from 05:38 to 06:51: 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.