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 Sunday, 7 June 2026: day of the Sun
- Sunrise
- 07:55
- Sunset
- 17:49
- Next sunrise
- 07:55
A day hour lasts 50 min; a night hour, 1h 11m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun07:55 – 08:44
- 2♀︎ Venus08:44 – 09:34
- 3☿︎ Mercury09:34 – 10:23
- 4☽︎ Moon10:23 – 11:13
- 5♄︎ Saturn11:13 – 12:02
- 6♃︎ Jupiter12:02 – 12:52
- 7♂︎ Mars12:52 – 13:41
- 8☉︎ Sun13:41 – 14:31
- 9♀︎ Venus14:31 – 15:20
- 10☿︎ Mercury15:20 – 16:10
- 11☽︎ Moon16:10 – 17:00
- 12♄︎ Saturn17:00 – 17:49
Night
- 1♃︎ Jupiter17:49 – 19:00
- 2♂︎ Mars19:00 – 20:10
- 3☉︎ Sun20:10 – 21:21
- 4♀︎ Venus21:21 – 22:31
- 5☿︎ Mercury22:31 – 23:42
- 6☽︎ Moon23:42 – 00:52
- 7♄︎ Saturn00:52 – 02:03
- 8♃︎ Jupiter02:03 – 03:13
- 9♂︎ Mars03:13 – 04:24
- 10☉︎ Sun04:24 – 05:34
- 11♀︎ Venus05:34 – 06:45
- 12☿︎ Mercury06:45 – 07:55
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Sunday, 7 June 2026, the Sun rises at 07:55 and sets at 17:49: the day lasts 9h 54m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:55, lasts 14h 06m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
The Sun, from 07:55 to 08:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.