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 Saturday, 16 May 2026: day of Saturn
- Sunrise
- 07:46
- Sunset
- 18:10
- Next sunrise
- 07:47
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Argentina/Cordoba).
Day
- 1♄︎ Saturn07:46 – 08:38
- 2♃︎ Jupiter08:38 – 09:30
- 3♂︎ Mars09:30 – 10:22
- 4☉︎ Sun10:22 – 11:14
- 5♀︎ Venus11:14 – 12:06
- 6☿︎ Mercury12:06 – 12:58
- 7☽︎ Moon12:58 – 13:50
- 8♄︎ Saturn13:50 – 14:42
- 9♃︎ Jupiter14:42 – 15:34
- 10♂︎ Mars15:34 – 16:26
- 11☉︎ Sun16:26 – 17:18
- 12♀︎ Venus17:18 – 18:10
Night
- 1☿︎ Mercury18:10 – 19:18
- 2☽︎ Moon19:18 – 20:27
- 3♄︎ Saturn20:27 – 21:35
- 4♃︎ Jupiter21:35 – 22:43
- 5♂︎ Mars22:43 – 23:51
- 6☉︎ Sun23:51 – 00:59
- 7♀︎ Venus00:59 – 02:07
- 8☿︎ Mercury02:07 – 03:15
- 9☽︎ Moon03:15 – 04:23
- 10♄︎ Saturn04:23 – 05:31
- 11♃︎ Jupiter05:31 – 06:39
- 12♂︎ Mars06:39 – 07:47
Other cities · Argentina
Questions
How are the planetary hours calculated in Rosario?
On Saturday, 16 May 2026, the Sun rises at 07:46 and sets at 18:10: the day lasts 10h 24m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:47, lasts 13h 36m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Saturn, from 07:46 to 08:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.