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, 30 May 2026: day of Saturn
- Sunrise
- 06:21
- Sunset
- 20:16
- Next sunrise
- 06:21
A day hour lasts 1h 10m; a night hour, 50 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn06:21 – 07:31
- 2♃︎ Jupiter07:31 – 08:40
- 3♂︎ Mars08:40 – 09:50
- 4☉︎ Sun09:50 – 11:00
- 5♀︎ Venus11:00 – 12:09
- 6☿︎ Mercury12:09 – 13:19
- 7☽︎ Moon13:19 – 14:28
- 8♄︎ Saturn14:28 – 15:38
- 9♃︎ Jupiter15:38 – 16:47
- 10♂︎ Mars16:47 – 17:57
- 11☉︎ Sun17:57 – 19:06
- 12♀︎ Venus19:06 – 20:16
Night
- 1☿︎ Mercury20:16 – 21:06
- 2☽︎ Moon21:06 – 21:57
- 3♄︎ Saturn21:57 – 22:47
- 4♃︎ Jupiter22:47 – 23:38
- 5♂︎ Mars23:38 – 00:28
- 6☉︎ Sun00:28 – 01:19
- 7♀︎ Venus01:19 – 02:09
- 8☿︎ Mercury02:09 – 02:59
- 9☽︎ Moon02:59 – 03:50
- 10♄︎ Saturn03:50 – 04:40
- 11♃︎ Jupiter04:40 – 05:31
- 12♂︎ Mars05:31 – 06:21
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Saturday, 30 May 2026, the Sun rises at 06:21 and sets at 20:16: the day lasts 13h 55m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:21, lasts 10h 05m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Saturn, from 06:21 to 07:31: 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.