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 Tuesday, 5 January 2027: day of Mars
- Sunrise
- 07:17
- Sunset
- 17:36
- Next sunrise
- 07:17
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:17 – 08:09
- 2☉︎ Sun08:09 – 09:00
- 3♀︎ Venus09:00 – 09:52
- 4☿︎ Mercury09:52 – 10:43
- 5☽︎ Moon10:43 – 11:35
- 6♄︎ Saturn11:35 – 12:26
- 7♃︎ Jupiter12:26 – 13:18
- 8♂︎ Mars13:18 – 14:10
- 9☉︎ Sun14:10 – 15:01
- 10♀︎ Venus15:01 – 15:53
- 11☿︎ Mercury15:53 – 16:44
- 12☽︎ Moon16:44 – 17:36
Night
- 1♄︎ Saturn17:36 – 18:44
- 2♃︎ Jupiter18:44 – 19:53
- 3♂︎ Mars19:53 – 21:01
- 4☉︎ Sun21:01 – 22:10
- 5♀︎ Venus22:10 – 23:18
- 6☿︎ Mercury23:18 – 00:26
- 7☽︎ Moon00:26 – 01:35
- 8♄︎ Saturn01:35 – 02:43
- 9♃︎ Jupiter02:43 – 03:52
- 10♂︎ Mars03:52 – 05:00
- 11☉︎ Sun05:00 – 06:09
- 12♀︎ Venus06:09 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Tuesday, 5 January 2027, the Sun rises at 07:17 and sets at 17:36: the day lasts 10h 19m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:17, lasts 13h 41m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 07:17 to 08:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.