Planetary hours
in Mérida.
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, 21 August 2026: day of Venus
- Sunrise
- 05:39
- Sunset
- 18:23
- Next sunrise
- 05:39
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Merida).
Day
- 1♀︎ Venus05:39 – 06:42
- 2☿︎ Mercury06:42 – 07:46
- 3☽︎ Moon07:46 – 08:50
- 4♄︎ Saturn08:50 – 09:54
- 5♃︎ Jupiter09:54 – 10:57
- 6♂︎ Mars10:57 – 12:01
- 7☉︎ Sun12:01 – 13:05
- 8♀︎ Venus13:05 – 14:08
- 9☿︎ Mercury14:08 – 15:12
- 10☽︎ Moon15:12 – 16:16
- 11♄︎ Saturn16:16 – 17:19
- 12♃︎ Jupiter17:19 – 18:23
Night
- 1♂︎ Mars18:23 – 19:19
- 2☉︎ Sun19:19 – 20:16
- 3♀︎ Venus20:16 – 21:12
- 4☿︎ Mercury21:12 – 22:08
- 5☽︎ Moon22:08 – 23:05
- 6♄︎ Saturn23:05 – 00:01
- 7♃︎ Jupiter00:01 – 00:57
- 8♂︎ Mars00:57 – 01:54
- 9☉︎ Sun01:54 – 02:50
- 10♀︎ Venus02:50 – 03:46
- 11☿︎ Mercury03:46 – 04:43
- 12☽︎ Moon04:43 – 05:39
Other cities · Mexico
Questions
How are the planetary hours calculated in Mérida?
On Friday, 21 August 2026, the Sun rises at 05:39 and sets at 18:23: the day lasts 12h 44m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:39, lasts 11h 16m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 05:39 to 06:42: 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.