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, 28 January 2026: day of Mercury
- Sunrise
- 06:22
- Sunset
- 20:08
- Next sunrise
- 06:23
A day hour lasts 1h 09m; a night hour, 51 min. Local time (America/Argentina/Cordoba).
Day
- 1☿︎ Mercury06:22 – 07:30
- 2☽︎ Moon07:30 – 08:39
- 3♄︎ Saturn08:39 – 09:48
- 4♃︎ Jupiter09:48 – 10:57
- 5♂︎ Mars10:57 – 12:06
- 6☉︎ Sun12:06 – 13:15
- 7♀︎ Venus13:15 – 14:24
- 8☿︎ Mercury14:24 – 15:33
- 9☽︎ Moon15:33 – 16:41
- 10♄︎ Saturn16:41 – 17:50
- 11♃︎ Jupiter17:50 – 18:59
- 12♂︎ Mars18:59 – 20:08
Night
- 1☉︎ Sun20:08 – 20:59
- 2♀︎ Venus20:59 – 21:50
- 3☿︎ Mercury21:50 – 22:42
- 4☽︎ Moon22:42 – 23:33
- 5♄︎ Saturn23:33 – 00:24
- 6♃︎ Jupiter00:24 – 01:15
- 7♂︎ Mars01:15 – 02:06
- 8☉︎ Sun02:06 – 02:58
- 9♀︎ Venus02:58 – 03:49
- 10☿︎ Mercury03:49 – 04:40
- 11☽︎ Moon04:40 – 05:31
- 12♄︎ Saturn05:31 – 06:23
Other cities · Argentina
Questions
How are the planetary hours calculated in Rosario?
On Wednesday, 28 January 2026, the Sun rises at 06:22 and sets at 20:08: the day lasts 13h 46m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:23, lasts 10h 15m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mercury, from 06:22 to 07:30: 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.