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, 18 July 2026: day of Saturn
- Sunrise
- 06:32
- Sunset
- 20:22
- Next sunrise
- 06:33
A day hour lasts 1h 09m; a night hour, 51 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn06:32 – 07:41
- 2♃︎ Jupiter07:41 – 08:51
- 3♂︎ Mars08:51 – 10:00
- 4☉︎ Sun10:00 – 11:09
- 5♀︎ Venus11:09 – 12:18
- 6☿︎ Mercury12:18 – 13:27
- 7☽︎ Moon13:27 – 14:36
- 8♄︎ Saturn14:36 – 15:45
- 9♃︎ Jupiter15:45 – 16:54
- 10♂︎ Mars16:54 – 18:04
- 11☉︎ Sun18:04 – 19:13
- 12♀︎ Venus19:13 – 20:22
Night
- 1☿︎ Mercury20:22 – 21:13
- 2☽︎ Moon21:13 – 22:04
- 3♄︎ Saturn22:04 – 22:55
- 4♃︎ Jupiter22:55 – 23:46
- 5♂︎ Mars23:46 – 00:36
- 6☉︎ Sun00:36 – 01:27
- 7♀︎ Venus01:27 – 02:18
- 8☿︎ Mercury02:18 – 03:09
- 9☽︎ Moon03:09 – 04:00
- 10♄︎ Saturn04:00 – 04:51
- 11♃︎ Jupiter04:51 – 05:42
- 12♂︎ Mars05:42 – 06:33
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Saturday, 18 July 2026, the Sun rises at 06:32 and sets at 20:22: the day lasts 13h 49m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:33, lasts 10h 11m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Saturn, from 06:32 to 07:41: 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.