Planetary hours
in Houston.
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, 27 September 2026: day of the Sun
- Sunrise
- 07:12
- Sunset
- 19:11
- Next sunrise
- 07:13
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (America/Chicago).
Day
- 1☉︎ Sun07:12 – 08:12
- 2♀︎ Venus08:12 – 09:12
- 3☿︎ Mercury09:12 – 10:12
- 4☽︎ Moon10:12 – 11:12
- 5♄︎ Saturn11:12 – 12:12
- 6♃︎ Jupiter12:12 – 13:12
- 7♂︎ Mars13:12 – 14:12
- 8☉︎ Sun14:12 – 15:11
- 9♀︎ Venus15:11 – 16:11
- 10☿︎ Mercury16:11 – 17:11
- 11☽︎ Moon17:11 – 18:11
- 12♄︎ Saturn18:11 – 19:11
Night
- 1♃︎ Jupiter19:11 – 20:11
- 2♂︎ Mars20:11 – 21:11
- 3☉︎ Sun21:11 – 22:12
- 4♀︎ Venus22:12 – 23:12
- 5☿︎ Mercury23:12 – 00:12
- 6☽︎ Moon00:12 – 01:12
- 7♄︎ Saturn01:12 – 02:12
- 8♃︎ Jupiter02:12 – 03:12
- 9♂︎ Mars03:12 – 04:12
- 10☉︎ Sun04:12 – 05:12
- 11♀︎ Venus05:12 – 06:13
- 12☿︎ Mercury06:13 – 07:13
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Sunday, 27 September 2026, the Sun rises at 07:12 and sets at 19:11: the day lasts 11h 59m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:13, lasts 12h 01m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Sun, from 07:12 to 08:12: 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.