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 Wednesday, 2 September 2026: day of Mercury
- Sunrise
- 06:59
- Sunset
- 19:42
- Next sunrise
- 06:59
A day hour lasts 1h 04m; a night hour, 56 min. Local time (America/Chicago).
Day
- 1☿︎ Mercury06:59 – 08:02
- 2☽︎ Moon08:02 – 09:06
- 3♄︎ Saturn09:06 – 10:10
- 4♃︎ Jupiter10:10 – 11:13
- 5♂︎ Mars11:13 – 12:17
- 6☉︎ Sun12:17 – 13:20
- 7♀︎ Venus13:20 – 14:24
- 8☿︎ Mercury14:24 – 15:27
- 9☽︎ Moon15:27 – 16:31
- 10♄︎ Saturn16:31 – 17:35
- 11♃︎ Jupiter17:35 – 18:38
- 12♂︎ Mars18:38 – 19:42
Night
- 1☉︎ Sun19:42 – 20:38
- 2♀︎ Venus20:38 – 21:35
- 3☿︎ Mercury21:35 – 22:31
- 4☽︎ Moon22:31 – 23:28
- 5♄︎ Saturn23:28 – 00:24
- 6♃︎ Jupiter00:24 – 01:21
- 7♂︎ Mars01:21 – 02:17
- 8☉︎ Sun02:17 – 03:13
- 9♀︎ Venus03:13 – 04:10
- 10☿︎ Mercury04:10 – 05:06
- 11☽︎ Moon05:06 – 06:03
- 12♄︎ Saturn06:03 – 06:59
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Wednesday, 2 September 2026, the Sun rises at 06:59 and sets at 19:42: the day lasts 12h 43m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:59, lasts 11h 17m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Mercury, from 06:59 to 08:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.