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 Wednesday, 2 December 2026: day of Mercury
- Sunrise
- 05:38
- Sunset
- 20:19
- Next sunrise
- 05:37
A day hour lasts 1h 13m; a night hour, 47 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury05:38 – 06:51
- 2☽︎ Moon06:51 – 08:04
- 3♄︎ Saturn08:04 – 09:18
- 4♃︎ Jupiter09:18 – 10:31
- 5♂︎ Mars10:31 – 11:45
- 6☉︎ Sun11:45 – 12:58
- 7♀︎ Venus12:58 – 14:12
- 8☿︎ Mercury14:12 – 15:25
- 9☽︎ Moon15:25 – 16:39
- 10♄︎ Saturn16:39 – 17:52
- 11♃︎ Jupiter17:52 – 19:05
- 12♂︎ Mars19:05 – 20:19
Night
- 1☉︎ Sun20:19 – 21:05
- 2♀︎ Venus21:05 – 21:52
- 3☿︎ Mercury21:52 – 22:39
- 4☽︎ Moon22:39 – 23:25
- 5♄︎ Saturn23:25 – 00:12
- 6♃︎ Jupiter00:12 – 00:58
- 7♂︎ Mars00:58 – 01:45
- 8☉︎ Sun01:45 – 02:31
- 9♀︎ Venus02:31 – 03:18
- 10☿︎ Mercury03:18 – 04:04
- 11☽︎ Moon04:04 – 04:51
- 12♄︎ Saturn04:51 – 05:37
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Wednesday, 2 December 2026, the Sun rises at 05:38 and sets at 20:19: the day lasts 14h 41m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 05:37, lasts 9h 18m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Mercury, from 05:38 to 06:51: 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.