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, 13 December 2026: day of the Sun
- Sunrise
- 07:18
- Sunset
- 17:52
- Next sunrise
- 07:19
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Monterrey).
Day
- 1☉︎ Sun07:18 – 08:11
- 2♀︎ Venus08:11 – 09:04
- 3☿︎ Mercury09:04 – 09:57
- 4☽︎ Moon09:57 – 10:49
- 5♄︎ Saturn10:49 – 11:42
- 6♃︎ Jupiter11:42 – 12:35
- 7♂︎ Mars12:35 – 13:28
- 8☉︎ Sun13:28 – 14:21
- 9♀︎ Venus14:21 – 15:13
- 10☿︎ Mercury15:13 – 16:06
- 11☽︎ Moon16:06 – 16:59
- 12♄︎ Saturn16:59 – 17:52
Night
- 1♃︎ Jupiter17:52 – 18:59
- 2♂︎ Mars18:59 – 20:06
- 3☉︎ Sun20:06 – 21:14
- 4♀︎ Venus21:14 – 22:21
- 5☿︎ Mercury22:21 – 23:28
- 6☽︎ Moon23:28 – 00:35
- 7♄︎ Saturn00:35 – 01:43
- 8♃︎ Jupiter01:43 – 02:50
- 9♂︎ Mars02:50 – 03:57
- 10☉︎ Sun03:57 – 05:04
- 11♀︎ Venus05:04 – 06:12
- 12☿︎ Mercury06:12 – 07:19
Other cities · Mexico
Questions
How are the planetary hours calculated in Monterrey?
On Sunday, 13 December 2026, the Sun rises at 07:18 and sets at 17:52: the day lasts 10h 33m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:19, lasts 13h 27m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
The Sun, from 07:18 to 08:11: 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.