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 Monday, 21 September 2026: day of the Moon
- Sunrise
- 07:09
- Sunset
- 19:19
- Next sunrise
- 07:09
A day hour lasts 1h 01m; a night hour, 59 min. Local time (America/Chicago).
Day
- 1☽︎ Moon07:09 – 08:10
- 2♄︎ Saturn08:10 – 09:10
- 3♃︎ Jupiter09:10 – 10:11
- 4♂︎ Mars10:11 – 11:12
- 5☉︎ Sun11:12 – 12:13
- 6♀︎ Venus12:13 – 13:14
- 7☿︎ Mercury13:14 – 14:14
- 8☽︎ Moon14:14 – 15:15
- 9♄︎ Saturn15:15 – 16:16
- 10♃︎ Jupiter16:16 – 17:17
- 11♂︎ Mars17:17 – 18:18
- 12☉︎ Sun18:18 – 19:19
Night
- 1♀︎ Venus19:19 – 20:18
- 2☿︎ Mercury20:18 – 21:17
- 3☽︎ Moon21:17 – 22:16
- 4♄︎ Saturn22:16 – 23:15
- 5♃︎ Jupiter23:15 – 00:15
- 6♂︎ Mars00:15 – 01:14
- 7☉︎ Sun01:14 – 02:13
- 8♀︎ Venus02:13 – 03:12
- 9☿︎ Mercury03:12 – 04:12
- 10☽︎ Moon04:12 – 05:11
- 11♄︎ Saturn05:11 – 06:10
- 12♃︎ Jupiter06:10 – 07:09
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Monday, 21 September 2026, the Sun rises at 07:09 and sets at 19:19: the day lasts 12h 10m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:09, lasts 11h 51m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Moon, from 07:09 to 08:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.