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 Tuesday, 5 January 2027: day of Mars
- Sunrise
- 05:47
- Sunset
- 20:10
- Next sunrise
- 05:48
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars05:47 – 06:59
- 2☉︎ Sun06:59 – 08:11
- 3♀︎ Venus08:11 – 09:23
- 4☿︎ Mercury09:23 – 10:34
- 5☽︎ Moon10:34 – 11:46
- 6♄︎ Saturn11:46 – 12:58
- 7♃︎ Jupiter12:58 – 14:10
- 8♂︎ Mars14:10 – 15:22
- 9☉︎ Sun15:22 – 16:34
- 10♀︎ Venus16:34 – 17:46
- 11☿︎ Mercury17:46 – 18:58
- 12☽︎ Moon18:58 – 20:10
Night
- 1♄︎ Saturn20:10 – 20:58
- 2♃︎ Jupiter20:58 – 21:46
- 3♂︎ Mars21:46 – 22:34
- 4☉︎ Sun22:34 – 23:22
- 5♀︎ Venus23:22 – 00:11
- 6☿︎ Mercury00:11 – 00:59
- 7☽︎ Moon00:59 – 01:47
- 8♄︎ Saturn01:47 – 02:35
- 9♃︎ Jupiter02:35 – 03:23
- 10♂︎ Mars03:23 – 04:11
- 11☉︎ Sun04:11 – 04:59
- 12♀︎ Venus04:59 – 05:48
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Tuesday, 5 January 2027, the Sun rises at 05:47 and sets at 20:10: the day lasts 14h 23m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:48, lasts 9h 38m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mars, from 05:47 to 06:59: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.