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 Saturday, 5 December 2026: day of Saturn
- Sunrise
- 05:33
- Sunset
- 19:55
- Next sunrise
- 05:33
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn05:33 – 06:45
- 2♃︎ Jupiter06:45 – 07:57
- 3♂︎ Mars07:57 – 09:08
- 4☉︎ Sun09:08 – 10:20
- 5♀︎ Venus10:20 – 11:32
- 6☿︎ Mercury11:32 – 12:44
- 7☽︎ Moon12:44 – 13:56
- 8♄︎ Saturn13:56 – 15:07
- 9♃︎ Jupiter15:07 – 16:19
- 10♂︎ Mars16:19 – 17:31
- 11☉︎ Sun17:31 – 18:43
- 12♀︎ Venus18:43 – 19:55
Night
- 1☿︎ Mercury19:55 – 20:43
- 2☽︎ Moon20:43 – 21:31
- 3♄︎ Saturn21:31 – 22:19
- 4♃︎ Jupiter22:19 – 23:07
- 5♂︎ Mars23:07 – 23:56
- 6☉︎ Sun23:56 – 00:44
- 7♀︎ Venus00:44 – 01:32
- 8☿︎ Mercury01:32 – 02:20
- 9☽︎ Moon02:20 – 03:08
- 10♄︎ Saturn03:08 – 03:57
- 11♃︎ Jupiter03:57 – 04:45
- 12♂︎ Mars04:45 – 05:33
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Saturday, 5 December 2026, the Sun rises at 05:33 and sets at 19:55: the day lasts 14h 22m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:33, lasts 9h 38m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Saturn, 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: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.