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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 06:41
- Sunset
- 18:10
- Next sunrise
- 06:42
A day hour lasts 57 min; a night hour, 1h 03m. Local time (America/Monterrey).
Day
- 1☉︎ Sun06:41 – 07:39
- 2♀︎ Venus07:39 – 08:36
- 3☿︎ Mercury08:36 – 09:33
- 4☽︎ Moon09:33 – 10:31
- 5♄︎ Saturn10:31 – 11:28
- 6♃︎ Jupiter11:28 – 12:26
- 7♂︎ Mars12:26 – 13:23
- 8☉︎ Sun13:23 – 14:21
- 9♀︎ Venus14:21 – 15:18
- 10☿︎ Mercury15:18 – 16:15
- 11☽︎ Moon16:15 – 17:13
- 12♄︎ Saturn17:13 – 18:10
Night
- 1♃︎ Jupiter18:10 – 19:13
- 2♂︎ Mars19:13 – 20:16
- 3☉︎ Sun20:16 – 21:18
- 4♀︎ Venus21:18 – 22:21
- 5☿︎ Mercury22:21 – 23:23
- 6☽︎ Moon23:23 – 00:26
- 7♄︎ Saturn00:26 – 01:29
- 8♃︎ Jupiter01:29 – 02:31
- 9♂︎ Mars02:31 – 03:34
- 10☉︎ Sun03:34 – 04:36
- 11♀︎ Venus04:36 – 05:39
- 12☿︎ Mercury05:39 – 06:42
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Sunday, 18 October 2026, the Sun rises at 06:41 and sets at 18:10: the day lasts 11h 29m, that is twelve day hours of 57 min. The night, until the next sunrise at 06:42, lasts 12h 31m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
The Sun, from 06:41 to 07:39: 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.