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 Wednesday, 13 January 2027: day of Mercury
- Sunrise
- 05:54
- Sunset
- 20:09
- Next sunrise
- 05:55
A day hour lasts 1h 11m; a night hour, 49 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury05:54 – 07:05
- 2☽︎ Moon07:05 – 08:16
- 3♄︎ Saturn08:16 – 09:28
- 4♃︎ Jupiter09:28 – 10:39
- 5♂︎ Mars10:39 – 11:50
- 6☉︎ Sun11:50 – 13:02
- 7♀︎ Venus13:02 – 14:13
- 8☿︎ Mercury14:13 – 15:24
- 9☽︎ Moon15:24 – 16:35
- 10♄︎ Saturn16:35 – 17:47
- 11♃︎ Jupiter17:47 – 18:58
- 12♂︎ Mars18:58 – 20:09
Night
- 1☉︎ Sun20:09 – 20:58
- 2♀︎ Venus20:58 – 21:47
- 3☿︎ Mercury21:47 – 22:36
- 4☽︎ Moon22:36 – 23:24
- 5♄︎ Saturn23:24 – 00:13
- 6♃︎ Jupiter00:13 – 01:02
- 7♂︎ Mars01:02 – 01:51
- 8☉︎ Sun01:51 – 02:40
- 9♀︎ Venus02:40 – 03:28
- 10☿︎ Mercury03:28 – 04:17
- 11☽︎ Moon04:17 – 05:06
- 12♄︎ Saturn05:06 – 05:55
Other cities · Argentina
Questions
How are the planetary hours calculated in Buenos Aires?
On Wednesday, 13 January 2027, the Sun rises at 05:54 and sets at 20:09: the day lasts 14h 15m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:55, lasts 9h 46m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mercury, from 05:54 to 07:05: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.