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 Monday, 4 January 2027: day of the Moon
- Sunrise
- 07:17
- Sunset
- 17:35
- Next sunrise
- 07:17
A day hour lasts 52 min; a night hour, 1h 09m. Local time (America/Chicago).
Day
- 1☽︎ Moon07:17 – 08:08
- 2♄︎ Saturn08:08 – 09:00
- 3♃︎ Jupiter09:00 – 09:51
- 4♂︎ Mars09:51 – 10:43
- 5☉︎ Sun10:43 – 11:34
- 6♀︎ Venus11:34 – 12:26
- 7☿︎ Mercury12:26 – 13:17
- 8☽︎ Moon13:17 – 14:09
- 9♄︎ Saturn14:09 – 15:00
- 10♃︎ Jupiter15:00 – 15:52
- 11♂︎ Mars15:52 – 16:44
- 12☉︎ Sun16:44 – 17:35
Night
- 1♀︎ Venus17:35 – 18:44
- 2☿︎ Mercury18:44 – 19:52
- 3☽︎ Moon19:52 – 21:01
- 4♄︎ Saturn21:01 – 22:09
- 5♃︎ Jupiter22:09 – 23:18
- 6♂︎ Mars23:18 – 00:26
- 7☉︎ Sun00:26 – 01:35
- 8♀︎ Venus01:35 – 02:43
- 9☿︎ Mercury02:43 – 03:52
- 10☽︎ Moon03:52 – 05:00
- 11♄︎ Saturn05:00 – 06:09
- 12♃︎ Jupiter06:09 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Monday, 4 January 2027, the Sun rises at 07:17 and sets at 17:35: the day lasts 10h 18m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:17, lasts 13h 42m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
The Moon, from 07:17 to 08:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.