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 Thursday, 21 May 2026: day of Jupiter
- Sunrise
- 07:56
- Sunset
- 18:38
- Next sunrise
- 07:56
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Argentina/Tucuman).
Day
- 1♃︎ Jupiter07:56 – 08:49
- 2♂︎ Mars08:49 – 09:43
- 3☉︎ Sun09:43 – 10:36
- 4♀︎ Venus10:36 – 11:30
- 5☿︎ Mercury11:30 – 12:23
- 6☽︎ Moon12:23 – 13:17
- 7♄︎ Saturn13:17 – 14:10
- 8♃︎ Jupiter14:10 – 15:04
- 9♂︎ Mars15:04 – 15:57
- 10☉︎ Sun15:57 – 16:51
- 11♀︎ Venus16:51 – 17:44
- 12☿︎ Mercury17:44 – 18:38
Night
- 1☽︎ Moon18:38 – 19:44
- 2♄︎ Saturn19:44 – 20:51
- 3♃︎ Jupiter20:51 – 21:57
- 4♂︎ Mars21:57 – 23:04
- 5☉︎ Sun23:04 – 00:11
- 6♀︎ Venus00:11 – 01:17
- 7☿︎ Mercury01:17 – 02:24
- 8☽︎ Moon02:24 – 03:30
- 9♄︎ Saturn03:30 – 04:37
- 10♃︎ Jupiter04:37 – 05:43
- 11♂︎ Mars05:43 – 06:50
- 12☉︎ Sun06:50 – 07:56
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Thursday, 21 May 2026, the Sun rises at 07:56 and sets at 18:38: the day lasts 10h 42m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:56, lasts 13h 19m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Jupiter, from 07:56 to 08:49: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.