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, 4 February 2027: day of Jupiter
- Sunrise
- 07:09
- Sunset
- 18:01
- Next sunrise
- 07:08
A day hour lasts 54 min; a night hour, 1h 06m. Local time (America/Chicago).
Day
- 1♃︎ Jupiter07:09 – 08:03
- 2♂︎ Mars08:03 – 08:58
- 3☉︎ Sun08:58 – 09:52
- 4♀︎ Venus09:52 – 10:46
- 5☿︎ Mercury10:46 – 11:41
- 6☽︎ Moon11:41 – 12:35
- 7♄︎ Saturn12:35 – 13:29
- 8♃︎ Jupiter13:29 – 14:24
- 9♂︎ Mars14:24 – 15:18
- 10☉︎ Sun15:18 – 16:12
- 11♀︎ Venus16:12 – 17:07
- 12☿︎ Mercury17:07 – 18:01
Night
- 1☽︎ Moon18:01 – 19:07
- 2♄︎ Saturn19:07 – 20:12
- 3♃︎ Jupiter20:12 – 21:18
- 4♂︎ Mars21:18 – 22:23
- 5☉︎ Sun22:23 – 23:29
- 6♀︎ Venus23:29 – 00:35
- 7☿︎ Mercury00:35 – 01:40
- 8☽︎ Moon01:40 – 02:46
- 9♄︎ Saturn02:46 – 03:51
- 10♃︎ Jupiter03:51 – 04:57
- 11♂︎ Mars04:57 – 06:03
- 12☉︎ Sun06:03 – 07:08
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Thursday, 4 February 2027, the Sun rises at 07:09 and sets at 18:01: the day lasts 10h 52m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:08, lasts 13h 07m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Jupiter, from 07:09 to 08:03: 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.