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 Friday, 13 March 2026: day of Venus
- Sunrise
- 07:33
- Sunset
- 19:28
- Next sunrise
- 07:32
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (America/Chicago).
Day
- 1♀︎ Venus07:33 – 08:33
- 2☿︎ Mercury08:33 – 09:32
- 3☽︎ Moon09:32 – 10:32
- 4♄︎ Saturn10:32 – 11:31
- 5♃︎ Jupiter11:31 – 12:31
- 6♂︎ Mars12:31 – 13:31
- 7☉︎ Sun13:31 – 14:30
- 8♀︎ Venus14:30 – 15:30
- 9☿︎ Mercury15:30 – 16:29
- 10☽︎ Moon16:29 – 17:29
- 11♄︎ Saturn17:29 – 18:29
- 12♃︎ Jupiter18:29 – 19:28
Night
- 1♂︎ Mars19:28 – 20:28
- 2☉︎ Sun20:28 – 21:29
- 3♀︎ Venus21:29 – 22:29
- 4☿︎ Mercury22:29 – 23:29
- 5☽︎ Moon23:29 – 00:30
- 6♄︎ Saturn00:30 – 01:30
- 7♃︎ Jupiter01:30 – 02:30
- 8♂︎ Mars02:30 – 03:31
- 9☉︎ Sun03:31 – 04:31
- 10♀︎ Venus04:31 – 05:31
- 11☿︎ Mercury05:31 – 06:31
- 12☽︎ Moon06:31 – 07:32
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Friday, 13 March 2026, the Sun rises at 07:33 and sets at 19:28: the day lasts 11h 55m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:32, lasts 12h 04m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Venus, from 07:33 to 08:33: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.