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 Saturday, 5 September 2026: day of Saturn
- Sunrise
- 07:00
- Sunset
- 19:38
- Next sunrise
- 07:01
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:00 – 08:04
- 2♃︎ Jupiter08:04 – 09:07
- 3♂︎ Mars09:07 – 10:10
- 4☉︎ Sun10:10 – 11:13
- 5♀︎ Venus11:13 – 12:16
- 6☿︎ Mercury12:16 – 13:19
- 7☽︎ Moon13:19 – 14:22
- 8♄︎ Saturn14:22 – 15:26
- 9♃︎ Jupiter15:26 – 16:29
- 10♂︎ Mars16:29 – 17:32
- 11☉︎ Sun17:32 – 18:35
- 12♀︎ Venus18:35 – 19:38
Night
- 1☿︎ Mercury19:38 – 20:35
- 2☽︎ Moon20:35 – 21:32
- 3♄︎ Saturn21:32 – 22:29
- 4♃︎ Jupiter22:29 – 23:26
- 5♂︎ Mars23:26 – 00:23
- 6☉︎ Sun00:23 – 01:20
- 7♀︎ Venus01:20 – 02:16
- 8☿︎ Mercury02:16 – 03:13
- 9☽︎ Moon03:13 – 04:10
- 10♄︎ Saturn04:10 – 05:07
- 11♃︎ Jupiter05:07 – 06:04
- 12♂︎ Mars06:04 – 07:01
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Saturday, 5 September 2026, the Sun rises at 07:00 and sets at 19:38: the day lasts 12h 38m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 07:01, lasts 11h 23m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Saturn, from 07:00 to 08:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.