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 Wednesday, 21 October 2026: day of Mercury
- Sunrise
- 06:43
- Sunset
- 18:08
- Next sunrise
- 06:43
A day hour lasts 57 min; a night hour, 1h 03m. Local time (America/Monterrey).
Day
- 1☿︎ Mercury06:43 – 07:40
- 2☽︎ Moon07:40 – 08:37
- 3♄︎ Saturn08:37 – 09:34
- 4♃︎ Jupiter09:34 – 10:31
- 5♂︎ Mars10:31 – 11:28
- 6☉︎ Sun11:28 – 12:25
- 7♀︎ Venus12:25 – 13:22
- 8☿︎ Mercury13:22 – 14:19
- 9☽︎ Moon14:19 – 15:16
- 10♄︎ Saturn15:16 – 16:14
- 11♃︎ Jupiter16:14 – 17:11
- 12♂︎ Mars17:11 – 18:08
Night
- 1☉︎ Sun18:08 – 19:11
- 2♀︎ Venus19:11 – 20:14
- 3☿︎ Mercury20:14 – 21:17
- 4☽︎ Moon21:17 – 22:20
- 5♄︎ Saturn22:20 – 23:22
- 6♃︎ Jupiter23:22 – 00:25
- 7♂︎ Mars00:25 – 01:28
- 8☉︎ Sun01:28 – 02:31
- 9♀︎ Venus02:31 – 03:34
- 10☿︎ Mercury03:34 – 04:37
- 11☽︎ Moon04:37 – 05:40
- 12♄︎ Saturn05:40 – 06:43
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Wednesday, 21 October 2026, the Sun rises at 06:43 and sets at 18:08: the day lasts 11h 25m, that is twelve day hours of 57 min. The night, until the next sunrise at 06:43, lasts 12h 36m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mercury, from 06:43 to 07:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.