Planetary hours
in Merlo.
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, 7 December 2026: day of the Moon
- Sunrise
- 05:34
- Sunset
- 19:58
- Next sunrise
- 05:34
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☽︎ Moon05:34 – 06:46
- 2♄︎ Saturn06:46 – 07:58
- 3♃︎ Jupiter07:58 – 09:10
- 4♂︎ Mars09:10 – 10:22
- 5☉︎ Sun10:22 – 11:34
- 6♀︎ Venus11:34 – 12:46
- 7☿︎ Mercury12:46 – 13:58
- 8☽︎ Moon13:58 – 15:10
- 9♄︎ Saturn15:10 – 16:22
- 10♃︎ Jupiter16:22 – 17:34
- 11♂︎ Mars17:34 – 18:46
- 12☉︎ Sun18:46 – 19:58
Night
- 1♀︎ Venus19:58 – 20:46
- 2☿︎ Mercury20:46 – 21:34
- 3☽︎ Moon21:34 – 22:22
- 4♄︎ Saturn22:22 – 23:10
- 5♃︎ Jupiter23:10 – 23:58
- 6♂︎ Mars23:58 – 00:46
- 7☉︎ Sun00:46 – 01:34
- 8♀︎ Venus01:34 – 02:22
- 9☿︎ Mercury02:22 – 03:10
- 10☽︎ Moon03:10 – 03:58
- 11♄︎ Saturn03:58 – 04:46
- 12♃︎ Jupiter04:46 – 05:34
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Monday, 7 December 2026, the Sun rises at 05:34 and sets at 19:58: the day lasts 14h 24m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:34, lasts 9h 36m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Moon, from 05:34 to 06:46: 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.