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, 1 December 2026: day of Mars
- Sunrise
- 05:35
- Sunset
- 19:53
- Next sunrise
- 05:34
A day hour lasts 1h 12m; a night hour, 48 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1♂︎ Mars05:35 – 06:46
- 2☉︎ Sun06:46 – 07:58
- 3♀︎ Venus07:58 – 09:09
- 4☿︎ Mercury09:09 – 10:21
- 5☽︎ Moon10:21 – 11:32
- 6♄︎ Saturn11:32 – 12:44
- 7♃︎ Jupiter12:44 – 13:55
- 8♂︎ Mars13:55 – 15:07
- 9☉︎ Sun15:07 – 16:18
- 10♀︎ Venus16:18 – 17:30
- 11☿︎ Mercury17:30 – 18:41
- 12☽︎ Moon18:41 – 19:53
Night
- 1♄︎ Saturn19:53 – 20:41
- 2♃︎ Jupiter20:41 – 21:30
- 3♂︎ Mars21:30 – 22:18
- 4☉︎ Sun22:18 – 23:07
- 5♀︎ Venus23:07 – 23:55
- 6☿︎ Mercury23:55 – 00:44
- 7☽︎ Moon00:44 – 01:32
- 8♄︎ Saturn01:32 – 02:21
- 9♃︎ Jupiter02:21 – 03:09
- 10♂︎ Mars03:09 – 03:57
- 11☉︎ Sun03:57 – 04:46
- 12♀︎ Venus04:46 – 05:34
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Tuesday, 1 December 2026, the Sun rises at 05:35 and sets at 19:53: the day lasts 14h 18m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 05:34, lasts 9h 42m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mars, from 05:35 to 06:46: 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.