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, 11 May 2027: day of Mars
- Sunrise
- 07:37
- Sunset
- 18:02
- Next sunrise
- 07:37
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars07:37 – 08:29
- 2☉︎ Sun08:29 – 09:21
- 3♀︎ Venus09:21 – 10:13
- 4☿︎ Mercury10:13 – 11:05
- 5☽︎ Moon11:05 – 11:57
- 6♄︎ Saturn11:57 – 12:49
- 7♃︎ Jupiter12:49 – 13:41
- 8♂︎ Mars13:41 – 14:33
- 9☉︎ Sun14:33 – 15:26
- 10♀︎ Venus15:26 – 16:18
- 11☿︎ Mercury16:18 – 17:10
- 12☽︎ Moon17:10 – 18:02
Night
- 1♄︎ Saturn18:02 – 19:10
- 2♃︎ Jupiter19:10 – 20:18
- 3♂︎ Mars20:18 – 21:26
- 4☉︎ Sun21:26 – 22:34
- 5♀︎ Venus22:34 – 23:42
- 6☿︎ Mercury23:42 – 00:50
- 7☽︎ Moon00:50 – 01:58
- 8♄︎ Saturn01:58 – 03:06
- 9♃︎ Jupiter03:06 – 04:13
- 10♂︎ Mars04:13 – 05:21
- 11☉︎ Sun05:21 – 06:29
- 12♀︎ Venus06:29 – 07:37
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Tuesday, 11 May 2027, the Sun rises at 07:37 and sets at 18:02: the day lasts 10h 25m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:37, lasts 13h 35m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 07:37 to 08:29: 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.