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 Wednesday, 16 December 2026: day of Mercury
- Sunrise
- 05:48
- Sunset
- 20:07
- Next sunrise
- 05:49
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Cordoba).
Day
- 1☿︎ Mercury05:48 – 07:00
- 2☽︎ Moon07:00 – 08:11
- 3♄︎ Saturn08:11 – 09:23
- 4♃︎ Jupiter09:23 – 10:35
- 5♂︎ Mars10:35 – 11:46
- 6☉︎ Sun11:46 – 12:58
- 7♀︎ Venus12:58 – 14:09
- 8☿︎ Mercury14:09 – 15:21
- 9☽︎ Moon15:21 – 16:33
- 10♄︎ Saturn16:33 – 17:44
- 11♃︎ Jupiter17:44 – 18:56
- 12♂︎ Mars18:56 – 20:07
Night
- 1☉︎ Sun20:07 – 20:56
- 2♀︎ Venus20:56 – 21:44
- 3☿︎ Mercury21:44 – 22:33
- 4☽︎ Moon22:33 – 23:21
- 5♄︎ Saturn23:21 – 00:10
- 6♃︎ Jupiter00:10 – 00:58
- 7♂︎ Mars00:58 – 01:46
- 8☉︎ Sun01:46 – 02:35
- 9♀︎ Venus02:35 – 03:23
- 10☿︎ Mercury03:23 – 04:12
- 11☽︎ Moon04:12 – 05:00
- 12♄︎ Saturn05:00 – 05:49
Other cities · Argentina
Questions
How are the planetary hours calculated in Rosario?
On Wednesday, 16 December 2026, the Sun rises at 05:48 and sets at 20:07: 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?
Mercury, from 05:48 to 07:00: 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.