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 Thursday, 9 July 2026: day of Jupiter
- Sunrise
- 08:01
- Sunset
- 17:58
- Next sunrise
- 08:01
A day hour lasts 50 min; a night hour, 1h 10m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter08:01 – 08:51
- 2♂︎ Mars08:51 – 09:41
- 3☉︎ Sun09:41 – 10:30
- 4♀︎ Venus10:30 – 11:20
- 5☿︎ Mercury11:20 – 12:10
- 6☽︎ Moon12:10 – 13:00
- 7♄︎ Saturn13:00 – 13:50
- 8♃︎ Jupiter13:50 – 14:39
- 9♂︎ Mars14:39 – 15:29
- 10☉︎ Sun15:29 – 16:19
- 11♀︎ Venus16:19 – 17:09
- 12☿︎ Mercury17:09 – 17:58
Night
- 1☽︎ Moon17:58 – 19:09
- 2♄︎ Saturn19:09 – 20:19
- 3♃︎ Jupiter20:19 – 21:29
- 4♂︎ Mars21:29 – 22:39
- 5☉︎ Sun22:39 – 23:49
- 6♀︎ Venus23:49 – 01:00
- 7☿︎ Mercury01:00 – 02:10
- 8☽︎ Moon02:10 – 03:20
- 9♄︎ Saturn03:20 – 04:30
- 10♃︎ Jupiter04:30 – 05:40
- 11♂︎ Mars05:40 – 06:51
- 12☉︎ Sun06:51 – 08:01
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Thursday, 9 July 2026, the Sun rises at 08:01 and sets at 17:58: the day lasts 9h 57m, that is twelve day hours of 50 min. The night, until the next sunrise at 08:01, lasts 14h 02m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Jupiter, from 08:01 to 08:51: 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.