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 Tuesday, 8 December 2026: day of Mars
- Sunrise
- 07:15
- Sunset
- 17:50
- Next sunrise
- 07:16
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Monterrey).
Day
- 1♂︎ Mars07:15 – 08:08
- 2☉︎ Sun08:08 – 09:01
- 3♀︎ Venus09:01 – 09:54
- 4☿︎ Mercury09:54 – 10:47
- 5☽︎ Moon10:47 – 11:40
- 6♄︎ Saturn11:40 – 12:33
- 7♃︎ Jupiter12:33 – 13:26
- 8♂︎ Mars13:26 – 14:19
- 9☉︎ Sun14:19 – 15:12
- 10♀︎ Venus15:12 – 16:04
- 11☿︎ Mercury16:04 – 16:57
- 12☽︎ Moon16:57 – 17:50
Night
- 1♄︎ Saturn17:50 – 18:57
- 2♃︎ Jupiter18:57 – 20:05
- 3♂︎ Mars20:05 – 21:12
- 4☉︎ Sun21:12 – 22:19
- 5♀︎ Venus22:19 – 23:26
- 6☿︎ Mercury23:26 – 00:33
- 7☽︎ Moon00:33 – 01:40
- 8♄︎ Saturn01:40 – 02:47
- 9♃︎ Jupiter02:47 – 03:54
- 10♂︎ Mars03:54 – 05:02
- 11☉︎ Sun05:02 – 06:09
- 12♀︎ Venus06:09 – 07:16
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Tuesday, 8 December 2026, the Sun rises at 07:15 and sets at 17:50: the day lasts 10h 35m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:16, lasts 13h 25m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Mars, from 07:15 to 08:08: 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.