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, 27 May 2026: day of Mercury
- Sunrise
- 07:50
- Sunset
- 17:53
- Next sunrise
- 07:50
A day hour lasts 50 min; a night hour, 1h 10m. Local time (America/Argentina/Buenos_Aires).
Day
- 1☿︎ Mercury07:50 – 08:40
- 2☽︎ Moon08:40 – 09:30
- 3♄︎ Saturn09:30 – 10:21
- 4♃︎ Jupiter10:21 – 11:11
- 5♂︎ Mars11:11 – 12:01
- 6☉︎ Sun12:01 – 12:52
- 7♀︎ Venus12:52 – 13:42
- 8☿︎ Mercury13:42 – 14:32
- 9☽︎ Moon14:32 – 15:22
- 10♄︎ Saturn15:22 – 16:13
- 11♃︎ Jupiter16:13 – 17:03
- 12♂︎ Mars17:03 – 17:53
Night
- 1☉︎ Sun17:53 – 19:03
- 2♀︎ Venus19:03 – 20:13
- 3☿︎ Mercury20:13 – 21:23
- 4☽︎ Moon21:23 – 22:32
- 5♄︎ Saturn22:32 – 23:42
- 6♃︎ Jupiter23:42 – 00:52
- 7♂︎ Mars00:52 – 02:02
- 8☉︎ Sun02:02 – 03:11
- 9♀︎ Venus03:11 – 04:21
- 10☿︎ Mercury04:21 – 05:31
- 11☽︎ Moon05:31 – 06:41
- 12♄︎ Saturn06:41 – 07:50
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Wednesday, 27 May 2026, the Sun rises at 07:50 and sets at 17:53: the day lasts 10h 03m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:50, lasts 13h 57m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
Mercury, from 07:50 to 08:40: 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.