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 Friday, 1 May 2026: day of Venus
- Sunrise
- 07:51
- Sunset
- 18:20
- Next sunrise
- 07:52
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♀︎ Venus07:51 – 08:44
- 2☿︎ Mercury08:44 – 09:36
- 3☽︎ Moon09:36 – 10:28
- 4♄︎ Saturn10:28 – 11:21
- 5♃︎ Jupiter11:21 – 12:13
- 6♂︎ Mars12:13 – 13:05
- 7☉︎ Sun13:05 – 13:58
- 8♀︎ Venus13:58 – 14:50
- 9☿︎ Mercury14:50 – 15:42
- 10☽︎ Moon15:42 – 16:35
- 11♄︎ Saturn16:35 – 17:27
- 12♃︎ Jupiter17:27 – 18:20
Night
- 1♂︎ Mars18:20 – 19:27
- 2☉︎ Sun19:27 – 20:35
- 3♀︎ Venus20:35 – 21:43
- 4☿︎ Mercury21:43 – 22:50
- 5☽︎ Moon22:50 – 23:58
- 6♄︎ Saturn23:58 – 01:06
- 7♃︎ Jupiter01:06 – 02:14
- 8♂︎ Mars02:14 – 03:21
- 9☉︎ Sun03:21 – 04:29
- 10♀︎ Venus04:29 – 05:37
- 11☿︎ Mercury05:37 – 06:45
- 12☽︎ Moon06:45 – 07:52
Other cities · Argentina
Questions
How are the planetary hours calculated in Bahía Blanca?
On Friday, 1 May 2026, the Sun rises at 07:51 and sets at 18:20: the day lasts 10h 28m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:52, lasts 13h 33m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Venus, from 07:51 to 08:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.