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 Wednesday, 7 October 2026: day of Mercury
- Sunrise
- 07:18
- Sunset
- 18:59
- Next sunrise
- 07:18
A day hour lasts 58 min; a night hour, 1h 02m. Local time (America/Chicago).
Day
- 1☿︎ Mercury07:18 – 08:16
- 2☽︎ Moon08:16 – 09:15
- 3♄︎ Saturn09:15 – 10:13
- 4♃︎ Jupiter10:13 – 11:12
- 5♂︎ Mars11:12 – 12:10
- 6☉︎ Sun12:10 – 13:08
- 7♀︎ Venus13:08 – 14:07
- 8☿︎ Mercury14:07 – 15:05
- 9☽︎ Moon15:05 – 16:04
- 10♄︎ Saturn16:04 – 17:02
- 11♃︎ Jupiter17:02 – 18:01
- 12♂︎ Mars18:01 – 18:59
Night
- 1☉︎ Sun18:59 – 20:01
- 2♀︎ Venus20:01 – 21:02
- 3☿︎ Mercury21:02 – 22:04
- 4☽︎ Moon22:04 – 23:06
- 5♄︎ Saturn23:06 – 00:07
- 6♃︎ Jupiter00:07 – 01:09
- 7♂︎ Mars01:09 – 02:10
- 8☉︎ Sun02:10 – 03:12
- 9♀︎ Venus03:12 – 04:14
- 10☿︎ Mercury04:14 – 05:15
- 11☽︎ Moon05:15 – 06:17
- 12♄︎ Saturn06:17 – 07:18
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Wednesday, 7 October 2026, the Sun rises at 07:18 and sets at 18:59: the day lasts 11h 41m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:18, lasts 12h 19m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Mercury, from 07:18 to 08:16: 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.