Planetary hours
in San Miguel de Tucumán.
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, 22 August 2026: day of Saturn
- Sunrise
- 07:43
- Sunset
- 19:03
- Next sunrise
- 07:42
A day hour lasts 57 min; a night hour, 1h 03m. Local time (America/Argentina/Tucuman).
Day
- 1♄︎ Saturn07:43 – 08:40
- 2♃︎ Jupiter08:40 – 09:37
- 3♂︎ Mars09:37 – 10:33
- 4☉︎ Sun10:33 – 11:30
- 5♀︎ Venus11:30 – 12:27
- 6☿︎ Mercury12:27 – 13:23
- 7☽︎ Moon13:23 – 14:20
- 8♄︎ Saturn14:20 – 15:17
- 9♃︎ Jupiter15:17 – 16:13
- 10♂︎ Mars16:13 – 17:10
- 11☉︎ Sun17:10 – 18:07
- 12♀︎ Venus18:07 – 19:03
Night
- 1☿︎ Mercury19:03 – 20:07
- 2☽︎ Moon20:07 – 21:10
- 3♄︎ Saturn21:10 – 22:13
- 4♃︎ Jupiter22:13 – 23:16
- 5♂︎ Mars23:16 – 00:20
- 6☉︎ Sun00:20 – 01:23
- 7♀︎ Venus01:23 – 02:26
- 8☿︎ Mercury02:26 – 03:29
- 9☽︎ Moon03:29 – 04:33
- 10♄︎ Saturn04:33 – 05:36
- 11♃︎ Jupiter05:36 – 06:39
- 12♂︎ Mars06:39 – 07:42
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Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Saturday, 22 August 2026, the Sun rises at 07:43 and sets at 19:03: the day lasts 11h 20m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:42, lasts 12h 39m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Saturn, from 07:43 to 08:40: 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.