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, 27 August 2026: day of Jupiter
- Sunrise
- 07:20
- Sunset
- 18:32
- Next sunrise
- 07:18
A day hour lasts 56 min; a night hour, 1h 04m. Local time (America/Argentina/Buenos_Aires).
Day
- 1♃︎ Jupiter07:20 – 08:16
- 2♂︎ Mars08:16 – 09:12
- 3☉︎ Sun09:12 – 10:08
- 4♀︎ Venus10:08 – 11:04
- 5☿︎ Mercury11:04 – 12:00
- 6☽︎ Moon12:00 – 12:56
- 7♄︎ Saturn12:56 – 13:52
- 8♃︎ Jupiter13:52 – 14:48
- 9♂︎ Mars14:48 – 15:44
- 10☉︎ Sun15:44 – 16:40
- 11♀︎ Venus16:40 – 17:36
- 12☿︎ Mercury17:36 – 18:32
Night
- 1☽︎ Moon18:32 – 19:36
- 2♄︎ Saturn19:36 – 20:40
- 3♃︎ Jupiter20:40 – 21:44
- 4♂︎ Mars21:44 – 22:48
- 5☉︎ Sun22:48 – 23:52
- 6♀︎ Venus23:52 – 00:55
- 7☿︎ Mercury00:55 – 01:59
- 8☽︎ Moon01:59 – 03:03
- 9♄︎ Saturn03:03 – 04:07
- 10♃︎ Jupiter04:07 – 05:11
- 11♂︎ Mars05:11 – 06:15
- 12☉︎ Sun06:15 – 07:18
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Thursday, 27 August 2026, the Sun rises at 07:20 and sets at 18:32: the day lasts 11h 13m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:18, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Jupiter, from 07:20 to 08:16: 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.