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, 18 December 2026: day of Venus
- Sunrise
- 07:21
- Sunset
- 17:54
- Next sunrise
- 07:22
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Monterrey).
Day
- 1♀︎ Venus07:21 – 08:14
- 2☿︎ Mercury08:14 – 09:07
- 3☽︎ Moon09:07 – 09:59
- 4♄︎ Saturn09:59 – 10:52
- 5♃︎ Jupiter10:52 – 11:45
- 6♂︎ Mars11:45 – 12:37
- 7☉︎ Sun12:37 – 13:30
- 8♀︎ Venus13:30 – 14:23
- 9☿︎ Mercury14:23 – 15:16
- 10☽︎ Moon15:16 – 16:08
- 11♄︎ Saturn16:08 – 17:01
- 12♃︎ Jupiter17:01 – 17:54
Night
- 1♂︎ Mars17:54 – 19:01
- 2☉︎ Sun19:01 – 20:08
- 3♀︎ Venus20:08 – 21:16
- 4☿︎ Mercury21:16 – 22:23
- 5☽︎ Moon22:23 – 23:30
- 6♄︎ Saturn23:30 – 00:38
- 7♃︎ Jupiter00:38 – 01:45
- 8♂︎ Mars01:45 – 02:52
- 9☉︎ Sun02:52 – 04:00
- 10♀︎ Venus04:00 – 05:07
- 11☿︎ Mercury05:07 – 06:14
- 12☽︎ Moon06:14 – 07:22
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Friday, 18 December 2026, the Sun rises at 07:21 and sets at 17:54: the day lasts 10h 32m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:22, lasts 13h 28m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Venus, from 07:21 to 08:14: 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.