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 Wednesday, 19 August 2026: day of Mercury
- Sunrise
- 07:46
- Sunset
- 19:02
- Next sunrise
- 07:45
A day hour lasts 56 min; a night hour, 1h 04m. Local time (America/Argentina/Tucuman).
Day
- 1☿︎ Mercury07:46 – 08:43
- 2☽︎ Moon08:43 – 09:39
- 3♄︎ Saturn09:39 – 10:35
- 4♃︎ Jupiter10:35 – 11:31
- 5♂︎ Mars11:31 – 12:28
- 6☉︎ Sun12:28 – 13:24
- 7♀︎ Venus13:24 – 14:20
- 8☿︎ Mercury14:20 – 15:17
- 9☽︎ Moon15:17 – 16:13
- 10♄︎ Saturn16:13 – 17:09
- 11♃︎ Jupiter17:09 – 18:06
- 12♂︎ Mars18:06 – 19:02
Night
- 1☉︎ Sun19:02 – 20:06
- 2♀︎ Venus20:06 – 21:09
- 3☿︎ Mercury21:09 – 22:13
- 4☽︎ Moon22:13 – 23:16
- 5♄︎ Saturn23:16 – 00:20
- 6♃︎ Jupiter00:20 – 01:24
- 7♂︎ Mars01:24 – 02:27
- 8☉︎ Sun02:27 – 03:31
- 9♀︎ Venus03:31 – 04:34
- 10☿︎ Mercury04:34 – 05:38
- 11☽︎ Moon05:38 – 06:42
- 12♄︎ Saturn06:42 – 07:45
Other cities · Argentina
Questions
How are the planetary hours calculated in San Miguel de Tucumán?
On Wednesday, 19 August 2026, the Sun rises at 07:46 and sets at 19:02: the day lasts 11h 16m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:45, lasts 12h 43m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:46 to 08:43: 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.