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, 29 October 2026: day of Jupiter
- Sunrise
- 05:54
- Sunset
- 19:20
- Next sunrise
- 05:53
A day hour lasts 1h 07m; a night hour, 53 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter05:54 – 07:01
- 2♂︎ Mars07:01 – 08:09
- 3☉︎ Sun08:09 – 09:16
- 4♀︎ Venus09:16 – 10:23
- 5☿︎ Mercury10:23 – 11:30
- 6☽︎ Moon11:30 – 12:37
- 7♄︎ Saturn12:37 – 13:44
- 8♃︎ Jupiter13:44 – 14:51
- 9♂︎ Mars14:51 – 15:58
- 10☉︎ Sun15:58 – 17:05
- 11♀︎ Venus17:05 – 18:13
- 12☿︎ Mercury18:13 – 19:20
Night
- 1☽︎ Moon19:20 – 20:12
- 2♄︎ Saturn20:12 – 21:05
- 3♃︎ Jupiter21:05 – 21:58
- 4♂︎ Mars21:58 – 22:51
- 5☉︎ Sun22:51 – 23:44
- 6♀︎ Venus23:44 – 00:36
- 7☿︎ Mercury00:36 – 01:29
- 8☽︎ Moon01:29 – 02:22
- 9♄︎ Saturn02:22 – 03:15
- 10♃︎ Jupiter03:15 – 04:08
- 11♂︎ Mars04:08 – 05:01
- 12☉︎ Sun05:01 – 05:53
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Thursday, 29 October 2026, the Sun rises at 05:54 and sets at 19:20: the day lasts 13h 25m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 05:53, lasts 10h 34m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Jupiter, from 05:54 to 07:01: 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.