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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 06:08
- Sunset
- 19:11
- Next sunrise
- 06:07
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Argentina/Buenos_Aires).
Day
- 1☉︎ Sun06:08 – 07:14
- 2♀︎ Venus07:14 – 08:19
- 3☿︎ Mercury08:19 – 09:24
- 4☽︎ Moon09:24 – 10:29
- 5♄︎ Saturn10:29 – 11:35
- 6♃︎ Jupiter11:35 – 12:40
- 7♂︎ Mars12:40 – 13:45
- 8☉︎ Sun13:45 – 14:50
- 9♀︎ Venus14:50 – 15:56
- 10☿︎ Mercury15:56 – 17:01
- 11☽︎ Moon17:01 – 18:06
- 12♄︎ Saturn18:06 – 19:11
Night
- 1♃︎ Jupiter19:11 – 20:06
- 2♂︎ Mars20:06 – 21:01
- 3☉︎ Sun21:01 – 21:55
- 4♀︎ Venus21:55 – 22:50
- 5☿︎ Mercury22:50 – 23:45
- 6☽︎ Moon23:45 – 00:39
- 7♄︎ Saturn00:39 – 01:34
- 8♃︎ Jupiter01:34 – 02:29
- 9♂︎ Mars02:29 – 03:23
- 10☉︎ Sun03:23 – 04:18
- 11♀︎ Venus04:18 – 05:12
- 12☿︎ Mercury05:12 – 06:07
Other cities · Argentina
Questions
How are the planetary hours calculated in Merlo?
On Sunday, 18 October 2026, the Sun rises at 06:08 and sets at 19:11: the day lasts 13h 03m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:07, lasts 10h 56m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Sun, from 06:08 to 07:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.