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, 4 April 2026: day of Saturn
- Sunrise
- 07:07
- Sunset
- 19:41
- Next sunrise
- 07:06
A day hour lasts 1h 03m; a night hour, 57 min. Local time (America/Chicago).
Day
- 1♄︎ Saturn07:07 – 08:10
- 2♃︎ Jupiter08:10 – 09:13
- 3♂︎ Mars09:13 – 10:15
- 4☉︎ Sun10:15 – 11:18
- 5♀︎ Venus11:18 – 12:21
- 6☿︎ Mercury12:21 – 13:24
- 7☽︎ Moon13:24 – 14:27
- 8♄︎ Saturn14:27 – 15:30
- 9♃︎ Jupiter15:30 – 16:33
- 10♂︎ Mars16:33 – 17:36
- 11☉︎ Sun17:36 – 18:39
- 12♀︎ Venus18:39 – 19:41
Night
- 1☿︎ Mercury19:41 – 20:38
- 2☽︎ Moon20:38 – 21:35
- 3♄︎ Saturn21:35 – 22:32
- 4♃︎ Jupiter22:32 – 23:29
- 5♂︎ Mars23:29 – 00:26
- 6☉︎ Sun00:26 – 01:23
- 7♀︎ Venus01:23 – 02:21
- 8☿︎ Mercury02:21 – 03:18
- 9☽︎ Moon03:18 – 04:15
- 10♄︎ Saturn04:15 – 05:12
- 11♃︎ Jupiter05:12 – 06:09
- 12♂︎ Mars06:09 – 07:06
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Saturday, 4 April 2026, the Sun rises at 07:07 and sets at 19:41: the day lasts 12h 35m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 07:06, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Saturn, from 07:07 to 08:10: 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.