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, 29 August 2026: day of Saturn
- Sunrise
- 07:16
- Sunset
- 18:33
- Next sunrise
- 07:14
A day hour lasts 56 min; a night hour, 1h 03m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♄︎ Saturn07:16 – 08:12
- 2♃︎ Jupiter08:12 – 09:09
- 3♂︎ Mars09:09 – 10:05
- 4☉︎ Sun10:05 – 11:01
- 5♀︎ Venus11:01 – 11:58
- 6☿︎ Mercury11:58 – 12:54
- 7☽︎ Moon12:54 – 13:51
- 8♄︎ Saturn13:51 – 14:47
- 9♃︎ Jupiter14:47 – 15:43
- 10♂︎ Mars15:43 – 16:40
- 11☉︎ Sun16:40 – 17:36
- 12♀︎ Venus17:36 – 18:33
Night
- 1☿︎ Mercury18:33 – 19:36
- 2☽︎ Moon19:36 – 20:40
- 3♄︎ Saturn20:40 – 21:43
- 4♃︎ Jupiter21:43 – 22:47
- 5♂︎ Mars22:47 – 23:50
- 6☉︎ Sun23:50 – 00:53
- 7♀︎ Venus00:53 – 01:57
- 8☿︎ Mercury01:57 – 03:00
- 9☽︎ Moon03:00 – 04:04
- 10♄︎ Saturn04:04 – 05:07
- 11♃︎ Jupiter05:07 – 06:11
- 12♂︎ Mars06:11 – 07:14
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Saturday, 29 August 2026, the Sun rises at 07:16 and sets at 18:33: the day lasts 11h 17m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:14, lasts 12h 42m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Saturn, from 07:16 to 08:12: 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.