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, 27 October 2026: day of Mars
- Sunrise
- 07:31
- Sunset
- 18:38
- Next sunrise
- 07:32
A day hour lasts 56 min; a night hour, 1h 04m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:31 – 08:27
- 2☉︎ Sun08:27 – 09:22
- 3♀︎ Venus09:22 – 10:18
- 4☿︎ Mercury10:18 – 11:13
- 5☽︎ Moon11:13 – 12:09
- 6♄︎ Saturn12:09 – 13:05
- 7♃︎ Jupiter13:05 – 14:00
- 8♂︎ Mars14:00 – 14:56
- 9☉︎ Sun14:56 – 15:51
- 10♀︎ Venus15:51 – 16:47
- 11☿︎ Mercury16:47 – 17:43
- 12☽︎ Moon17:43 – 18:38
Night
- 1♄︎ Saturn18:38 – 19:43
- 2♃︎ Jupiter19:43 – 20:47
- 3♂︎ Mars20:47 – 21:52
- 4☉︎ Sun21:52 – 22:56
- 5♀︎ Venus22:56 – 00:01
- 6☿︎ Mercury00:01 – 01:05
- 7☽︎ Moon01:05 – 02:09
- 8♄︎ Saturn02:09 – 03:14
- 9♃︎ Jupiter03:14 – 04:18
- 10♂︎ Mars04:18 – 05:23
- 11☉︎ Sun05:23 – 06:27
- 12♀︎ Venus06:27 – 07:32
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Tuesday, 27 October 2026, the Sun rises at 07:31 and sets at 18:38: the day lasts 11h 07m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:32, lasts 12h 53m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mars, from 07:31 to 08:27: 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.