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, 18 August 2026: day of Mars
- Sunrise
- 06:15
- Sunset
- 19:13
- Next sunrise
- 06:16
A day hour lasts 1h 05m; a night hour, 55 min. Local time (America/Monterrey).
Day
- 1♂︎ Mars06:15 – 07:20
- 2☉︎ Sun07:20 – 08:25
- 3♀︎ Venus08:25 – 09:30
- 4☿︎ Mercury09:30 – 10:35
- 5☽︎ Moon10:35 – 11:40
- 6♄︎ Saturn11:40 – 12:44
- 7♃︎ Jupiter12:44 – 13:49
- 8♂︎ Mars13:49 – 14:54
- 9☉︎ Sun14:54 – 15:59
- 10♀︎ Venus15:59 – 17:04
- 11☿︎ Mercury17:04 – 18:09
- 12☽︎ Moon18:09 – 19:13
Night
- 1♄︎ Saturn19:13 – 20:09
- 2♃︎ Jupiter20:09 – 21:04
- 3♂︎ Mars21:04 – 21:59
- 4☉︎ Sun21:59 – 22:54
- 5♀︎ Venus22:54 – 23:49
- 6☿︎ Mercury23:49 – 00:45
- 7☽︎ Moon00:45 – 01:40
- 8♄︎ Saturn01:40 – 02:35
- 9♃︎ Jupiter02:35 – 03:30
- 10♂︎ Mars03:30 – 04:25
- 11☉︎ Sun04:25 – 05:21
- 12♀︎ Venus05:21 – 06:16
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Tuesday, 18 August 2026, the Sun rises at 06:15 and sets at 19:13: the day lasts 12h 58m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 06:16, lasts 11h 02m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 06:15 to 07:20: 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.