Planetary hours
in Monterrey.
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 Friday, 21 August 2026: day of Venus
- Sunrise
- 06:17
- Sunset
- 19:11
- Next sunrise
- 06:17
A day hour lasts 1h 05m; a night hour, 56 min. Local time (America/Monterrey).
Day
- 1♀︎ Venus06:17 – 07:21
- 2☿︎ Mercury07:21 – 08:26
- 3☽︎ Moon08:26 – 09:30
- 4♄︎ Saturn09:30 – 10:35
- 5♃︎ Jupiter10:35 – 11:39
- 6♂︎ Mars11:39 – 12:44
- 7☉︎ Sun12:44 – 13:48
- 8♀︎ Venus13:48 – 14:53
- 9☿︎ Mercury14:53 – 15:57
- 10☽︎ Moon15:57 – 17:02
- 11♄︎ Saturn17:02 – 18:06
- 12♃︎ Jupiter18:06 – 19:11
Night
- 1♂︎ Mars19:11 – 20:06
- 2☉︎ Sun20:06 – 21:02
- 3♀︎ Venus21:02 – 21:57
- 4☿︎ Mercury21:57 – 22:53
- 5☽︎ Moon22:53 – 23:48
- 6♄︎ Saturn23:48 – 00:44
- 7♃︎ Jupiter00:44 – 01:39
- 8♂︎ Mars01:39 – 02:35
- 9☉︎ Sun02:35 – 03:30
- 10♀︎ Venus03:30 – 04:26
- 11☿︎ Mercury04:26 – 05:22
- 12☽︎ Moon05:22 – 06:17
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Friday, 21 August 2026, the Sun rises at 06:17 and sets at 19:11: the day lasts 12h 54m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:17, lasts 11h 06m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 06:17 to 07:21: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.