Planetary hours
in Rosario.
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, 17 December 2026: day of Jupiter
- Sunrise
- 05:49
- Sunset
- 20:08
- Next sunrise
- 05:49
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Cordoba).
Day
- 1♃︎ Jupiter05:49 – 07:00
- 2♂︎ Mars07:00 – 08:12
- 3☉︎ Sun08:12 – 09:23
- 4♀︎ Venus09:23 – 10:35
- 5☿︎ Mercury10:35 – 11:47
- 6☽︎ Moon11:47 – 12:58
- 7♄︎ Saturn12:58 – 14:10
- 8♃︎ Jupiter14:10 – 15:21
- 9♂︎ Mars15:21 – 16:33
- 10☉︎ Sun16:33 – 17:45
- 11♀︎ Venus17:45 – 18:56
- 12☿︎ Mercury18:56 – 20:08
Night
- 1☽︎ Moon20:08 – 20:56
- 2♄︎ Saturn20:56 – 21:45
- 3♃︎ Jupiter21:45 – 22:33
- 4♂︎ Mars22:33 – 23:22
- 5☉︎ Sun23:22 – 00:10
- 6♀︎ Venus00:10 – 00:58
- 7☿︎ Mercury00:58 – 01:47
- 8☽︎ Moon01:47 – 02:35
- 9♄︎ Saturn02:35 – 03:24
- 10♃︎ Jupiter03:24 – 04:12
- 11♂︎ Mars04:12 – 05:01
- 12☉︎ Sun05:01 – 05:49
Other cities · Argentina
Questions
How are the planetary hours calculated in Rosario?
On Thursday, 17 December 2026, the Sun rises at 05:49 and sets at 20:08: the day lasts 14h 19m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:49, lasts 9h 41m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Jupiter, from 05:49 to 07:00: 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.