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, 31 July 2026: day of Venus
- Sunrise
- 06:40
- Sunset
- 20:14
- Next sunrise
- 06:41
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Chicago).
Day
- 1♀︎ Venus06:40 – 07:48
- 2☿︎ Mercury07:48 – 08:56
- 3☽︎ Moon08:56 – 10:04
- 4♄︎ Saturn10:04 – 11:11
- 5♃︎ Jupiter11:11 – 12:19
- 6♂︎ Mars12:19 – 13:27
- 7☉︎ Sun13:27 – 14:35
- 8♀︎ Venus14:35 – 15:43
- 9☿︎ Mercury15:43 – 16:51
- 10☽︎ Moon16:51 – 17:59
- 11♄︎ Saturn17:59 – 19:07
- 12♃︎ Jupiter19:07 – 20:14
Night
- 1♂︎ Mars20:14 – 21:07
- 2☉︎ Sun21:07 – 21:59
- 3♀︎ Venus21:59 – 22:51
- 4☿︎ Mercury22:51 – 23:43
- 5☽︎ Moon23:43 – 00:35
- 6♄︎ Saturn00:35 – 01:27
- 7♃︎ Jupiter01:27 – 02:20
- 8♂︎ Mars02:20 – 03:12
- 9☉︎ Sun03:12 – 04:04
- 10♀︎ Venus04:04 – 04:56
- 11☿︎ Mercury04:56 – 05:48
- 12☽︎ Moon05:48 – 06:41
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Friday, 31 July 2026, the Sun rises at 06:40 and sets at 20:14: the day lasts 13h 34m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:41, lasts 10h 26m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Venus, from 06:40 to 07:48: 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.