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 Thursday, 10 September 2026: day of Jupiter
- Sunrise
- 07:03
- Sunset
- 19:32
- Next sunrise
- 07:04
A day hour lasts 1h 02m; a night hour, 58 min. Local time (America/Chicago).
Day
- 1♃︎ Jupiter07:03 – 08:05
- 2♂︎ Mars08:05 – 09:08
- 3☉︎ Sun09:08 – 10:10
- 4♀︎ Venus10:10 – 11:13
- 5☿︎ Mercury11:13 – 12:15
- 6☽︎ Moon12:15 – 13:18
- 7♄︎ Saturn13:18 – 14:20
- 8♃︎ Jupiter14:20 – 15:22
- 9♂︎ Mars15:22 – 16:25
- 10☉︎ Sun16:25 – 17:27
- 11♀︎ Venus17:27 – 18:30
- 12☿︎ Mercury18:30 – 19:32
Night
- 1☽︎ Moon19:32 – 20:30
- 2♄︎ Saturn20:30 – 21:27
- 3♃︎ Jupiter21:27 – 22:25
- 4♂︎ Mars22:25 – 23:23
- 5☉︎ Sun23:23 – 00:20
- 6♀︎ Venus00:20 – 01:18
- 7☿︎ Mercury01:18 – 02:15
- 8☽︎ Moon02:15 – 03:13
- 9♄︎ Saturn03:13 – 04:11
- 10♃︎ Jupiter04:11 – 05:08
- 11♂︎ Mars05:08 – 06:06
- 12☉︎ Sun06:06 – 07:04
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Thursday, 10 September 2026, the Sun rises at 07:03 and sets at 19:32: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:04, lasts 11h 31m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Jupiter, from 07:03 to 08:05: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.