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 Tuesday, 15 September 2026: day of Mars
- Sunrise
- 06:54
- Sunset
- 18:46
- Next sunrise
- 06:52
A day hour lasts 59 min; a night hour, 1h 01m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars06:54 – 07:53
- 2☉︎ Sun07:53 – 08:52
- 3♀︎ Venus08:52 – 09:52
- 4☿︎ Mercury09:52 – 10:51
- 5☽︎ Moon10:51 – 11:50
- 6♄︎ Saturn11:50 – 12:50
- 7♃︎ Jupiter12:50 – 13:49
- 8♂︎ Mars13:49 – 14:49
- 9☉︎ Sun14:49 – 15:48
- 10♀︎ Venus15:48 – 16:47
- 11☿︎ Mercury16:47 – 17:47
- 12☽︎ Moon17:47 – 18:46
Night
- 1♄︎ Saturn18:46 – 19:46
- 2♃︎ Jupiter19:46 – 20:47
- 3♂︎ Mars20:47 – 21:48
- 4☉︎ Sun21:48 – 22:48
- 5♀︎ Venus22:48 – 23:49
- 6☿︎ Mercury23:49 – 00:49
- 7☽︎ Moon00:49 – 01:50
- 8♄︎ Saturn01:50 – 02:50
- 9♃︎ Jupiter02:50 – 03:51
- 10♂︎ Mars03:51 – 04:51
- 11☉︎ Sun04:51 – 05:52
- 12♀︎ Venus05:52 – 06:52
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Tuesday, 15 September 2026, the Sun rises at 06:54 and sets at 18:46: the day lasts 11h 52m, that is twelve day hours of 59 min. The night, until the next sunrise at 06:52, lasts 12h 06m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
Mars, from 06:54 to 07:53: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.