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, 18 April 2026: day of Saturn
- Sunrise
- 07:38
- Sunset
- 19:01
- Next sunrise
- 07:39
A day hour lasts 57 min; a night hour, 1h 03m. Local time (America/Argentina/Tucuman).
Day
- 1♄︎ Saturn07:38 – 08:35
- 2♃︎ Jupiter08:35 – 09:32
- 3♂︎ Mars09:32 – 10:29
- 4☉︎ Sun10:29 – 11:26
- 5♀︎ Venus11:26 – 12:23
- 6☿︎ Mercury12:23 – 13:19
- 7☽︎ Moon13:19 – 14:16
- 8♄︎ Saturn14:16 – 15:13
- 9♃︎ Jupiter15:13 – 16:10
- 10♂︎ Mars16:10 – 17:07
- 11☉︎ Sun17:07 – 18:04
- 12♀︎ Venus18:04 – 19:01
Night
- 1☿︎ Mercury19:01 – 20:04
- 2☽︎ Moon20:04 – 21:07
- 3♄︎ Saturn21:07 – 22:10
- 4♃︎ Jupiter22:10 – 23:13
- 5♂︎ Mars23:13 – 00:17
- 6☉︎ Sun00:17 – 01:20
- 7♀︎ Venus01:20 – 02:23
- 8☿︎ Mercury02:23 – 03:26
- 9☽︎ Moon03:26 – 04:29
- 10♄︎ Saturn04:29 – 05:32
- 11♃︎ Jupiter05:32 – 06:36
- 12♂︎ Mars06:36 – 07:39
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Saturday, 18 April 2026, the Sun rises at 07:38 and sets at 19:01: the day lasts 11h 22m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:39, lasts 12h 38m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Saturn, from 07:38 to 08:35: 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.