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 Monday, 22 December 2025: day of the Moon
- Sunrise
- 06:24
- Sunset
- 20:14
- Next sunrise
- 06:25
A day hour lasts 1h 09m; a night hour, 51 min. Local time (America/Argentina/Tucuman).
Day
- 1☽︎ Moon06:24 – 07:33
- 2♄︎ Saturn07:33 – 08:42
- 3♃︎ Jupiter08:42 – 09:52
- 4♂︎ Mars09:52 – 11:01
- 5☉︎ Sun11:01 – 12:10
- 6♀︎ Venus12:10 – 13:19
- 7☿︎ Mercury13:19 – 14:28
- 8☽︎ Moon14:28 – 15:37
- 9♄︎ Saturn15:37 – 16:47
- 10♃︎ Jupiter16:47 – 17:56
- 11♂︎ Mars17:56 – 19:05
- 12☉︎ Sun19:05 – 20:14
Night
- 1♀︎ Venus20:14 – 21:05
- 2☿︎ Mercury21:05 – 21:56
- 3☽︎ Moon21:56 – 22:47
- 4♄︎ Saturn22:47 – 23:38
- 5♃︎ Jupiter23:38 – 00:28
- 6♂︎ Mars00:28 – 01:19
- 7☉︎ Sun01:19 – 02:10
- 8♀︎ Venus02:10 – 03:01
- 9☿︎ Mercury03:01 – 03:52
- 10☽︎ Moon03:52 – 04:43
- 11♄︎ Saturn04:43 – 05:34
- 12♃︎ Jupiter05:34 – 06:25
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Monday, 22 December 2025, the Sun rises at 06:24 and sets at 20:14: the day lasts 13h 50m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:25, lasts 10h 11m: twelve night hours of 51 min.
Which planet rules the first hour that day?
The Moon, from 06:24 to 07:33: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.