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 Thursday, 21 January 2027: day of Jupiter
- Sunrise
- 07:16
- Sunset
- 17:49
- Next sunrise
- 07:15
A day hour lasts 53 min; a night hour, 1h 07m. Local time (America/Chicago).
Day
- 1♃︎ Jupiter07:16 – 08:09
- 2♂︎ Mars08:09 – 09:01
- 3☉︎ Sun09:01 – 09:54
- 4♀︎ Venus09:54 – 10:47
- 5☿︎ Mercury10:47 – 11:40
- 6☽︎ Moon11:40 – 12:32
- 7♄︎ Saturn12:32 – 13:25
- 8♃︎ Jupiter13:25 – 14:18
- 9♂︎ Mars14:18 – 15:11
- 10☉︎ Sun15:11 – 16:03
- 11♀︎ Venus16:03 – 16:56
- 12☿︎ Mercury16:56 – 17:49
Night
- 1☽︎ Moon17:49 – 18:56
- 2♄︎ Saturn18:56 – 20:03
- 3♃︎ Jupiter20:03 – 21:11
- 4♂︎ Mars21:11 – 22:18
- 5☉︎ Sun22:18 – 23:25
- 6♀︎ Venus23:25 – 00:32
- 7☿︎ Mercury00:32 – 01:39
- 8☽︎ Moon01:39 – 02:47
- 9♄︎ Saturn02:47 – 03:54
- 10♃︎ Jupiter03:54 – 05:01
- 11♂︎ Mars05:01 – 06:08
- 12☉︎ Sun06:08 – 07:15
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Thursday, 21 January 2027, the Sun rises at 07:16 and sets at 17:49: the day lasts 10h 33m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:15, lasts 13h 26m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Jupiter, from 07:16 to 08:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.