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 Wednesday, 18 November 2026: day of Mercury
- Sunrise
- 05:39
- Sunset
- 19:40
- Next sunrise
- 05:39
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury05:39 – 06:49
- 2☽︎ Moon06:49 – 07:59
- 3♄︎ Saturn07:59 – 09:10
- 4♃︎ Jupiter09:10 – 10:20
- 5♂︎ Mars10:20 – 11:30
- 6☉︎ Sun11:30 – 12:40
- 7♀︎ Venus12:40 – 13:50
- 8☿︎ Mercury13:50 – 15:00
- 9☽︎ Moon15:00 – 16:10
- 10♄︎ Saturn16:10 – 17:20
- 11♃︎ Jupiter17:20 – 18:30
- 12♂︎ Mars18:30 – 19:40
Night
- 1☉︎ Sun19:40 – 20:30
- 2♀︎ Venus20:30 – 21:20
- 3☿︎ Mercury21:20 – 22:10
- 4☽︎ Moon22:10 – 23:00
- 5♄︎ Saturn23:00 – 23:50
- 6♃︎ Jupiter23:50 – 00:40
- 7♂︎ Mars00:40 – 01:29
- 8☉︎ Sun01:29 – 02:19
- 9♀︎ Venus02:19 – 03:09
- 10☿︎ Mercury03:09 – 03:59
- 11☽︎ Moon03:59 – 04:49
- 12♄︎ Saturn04:49 – 05:39
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Wednesday, 18 November 2026, the Sun rises at 05:39 and sets at 19:40: the day lasts 14h 01m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:39, lasts 9h 58m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mercury, from 05:39 to 06:49: 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.