Planetary hours
in Bahía Blanca.
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 Thursday, 10 December 2026: day of Jupiter
- Sunrise
- 05:37
- Sunset
- 20:26
- Next sunrise
- 05:37
A day hour lasts 1h 14m; a night hour, 46 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter05:37 – 06:51
- 2♂︎ Mars06:51 – 08:05
- 3☉︎ Sun08:05 – 09:19
- 4♀︎ Venus09:19 – 10:33
- 5☿︎ Mercury10:33 – 11:47
- 6☽︎ Moon11:47 – 13:02
- 7♄︎ Saturn13:02 – 14:16
- 8♃︎ Jupiter14:16 – 15:30
- 9♂︎ Mars15:30 – 16:44
- 10☉︎ Sun16:44 – 17:58
- 11♀︎ Venus17:58 – 19:12
- 12☿︎ Mercury19:12 – 20:26
Night
- 1☽︎ Moon20:26 – 21:12
- 2♄︎ Saturn21:12 – 21:58
- 3♃︎ Jupiter21:58 – 22:44
- 4♂︎ Mars22:44 – 23:30
- 5☉︎ Sun23:30 – 00:16
- 6♀︎ Venus00:16 – 01:02
- 7☿︎ Mercury01:02 – 01:48
- 8☽︎ Moon01:48 – 02:33
- 9♄︎ Saturn02:33 – 03:19
- 10♃︎ Jupiter03:19 – 04:05
- 11♂︎ Mars04:05 – 04:51
- 12☉︎ Sun04:51 – 05:37
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Thursday, 10 December 2026, the Sun rises at 05:37 and sets at 20:26: the day lasts 14h 49m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:37, lasts 9h 11m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Jupiter, from 05:37 to 06:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.