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 Sunday, 13 September 2026: day of the Sun
- Sunrise
- 07:12
- Sunset
- 18:57
- Next sunrise
- 07:11
A day hour lasts 59 min; a night hour, 1h 01m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun07:12 – 08:11
- 2♀︎ Venus08:11 – 09:10
- 3☿︎ Mercury09:10 – 10:08
- 4☽︎ Moon10:08 – 11:07
- 5♄︎ Saturn11:07 – 12:06
- 6♃︎ Jupiter12:06 – 13:05
- 7♂︎ Mars13:05 – 14:03
- 8☉︎ Sun14:03 – 15:02
- 9♀︎ Venus15:02 – 16:01
- 10☿︎ Mercury16:01 – 17:00
- 11☽︎ Moon17:00 – 17:59
- 12♄︎ Saturn17:59 – 18:57
Night
- 1♃︎ Jupiter18:57 – 19:58
- 2♂︎ Mars19:58 – 21:00
- 3☉︎ Sun21:00 – 22:01
- 4♀︎ Venus22:01 – 23:02
- 5☿︎ Mercury23:02 – 00:03
- 6☽︎ Moon00:03 – 01:04
- 7♄︎ Saturn01:04 – 02:05
- 8♃︎ Jupiter02:05 – 03:06
- 9♂︎ Mars03:06 – 04:07
- 10☉︎ Sun04:07 – 05:08
- 11♀︎ Venus05:08 – 06:09
- 12☿︎ Mercury06:09 – 07:11
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Sunday, 13 September 2026, the Sun rises at 07:12 and sets at 18:57: the day lasts 11h 45m, that is twelve day hours of 59 min. The night, until the next sunrise at 07:11, lasts 12h 13m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
The Sun, from 07:12 to 08:11: 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.