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, 15 September 2026: day of Mars
- Sunrise
- 07:06
- Sunset
- 19:26
- Next sunrise
- 07:06
A day hour lasts 1h 02m; a night hour, 58 min. Local time (America/Chicago).
Day
- 1♂︎ Mars07:06 – 08:07
- 2☉︎ Sun08:07 – 09:09
- 3♀︎ Venus09:09 – 10:11
- 4☿︎ Mercury10:11 – 11:12
- 5☽︎ Moon11:12 – 12:14
- 6♄︎ Saturn12:14 – 13:16
- 7♃︎ Jupiter13:16 – 14:18
- 8♂︎ Mars14:18 – 15:19
- 9☉︎ Sun15:19 – 16:21
- 10♀︎ Venus16:21 – 17:23
- 11☿︎ Mercury17:23 – 18:24
- 12☽︎ Moon18:24 – 19:26
Night
- 1♄︎ Saturn19:26 – 20:24
- 2♃︎ Jupiter20:24 – 21:23
- 3♂︎ Mars21:23 – 22:21
- 4☉︎ Sun22:21 – 23:19
- 5♀︎ Venus23:19 – 00:18
- 6☿︎ Mercury00:18 – 01:16
- 7☽︎ Moon01:16 – 02:14
- 8♄︎ Saturn02:14 – 03:13
- 9♃︎ Jupiter03:13 – 04:11
- 10♂︎ Mars04:11 – 05:09
- 11☉︎ Sun05:09 – 06:08
- 12♀︎ Venus06:08 – 07:06
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Tuesday, 15 September 2026, the Sun rises at 07:06 and sets at 19:26: the day lasts 12h 20m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:06, lasts 11h 40m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 07:06 to 08:07: 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.