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, 13 October 2026: day of Mars
- Sunrise
- 07:21
- Sunset
- 18:52
- Next sunrise
- 07:22
A day hour lasts 58 min; a night hour, 1h 02m. Local time (America/Chicago).
Day
- 1♂︎ Mars07:21 – 08:19
- 2☉︎ Sun08:19 – 09:17
- 3♀︎ Venus09:17 – 10:14
- 4☿︎ Mercury10:14 – 11:12
- 5☽︎ Moon11:12 – 12:09
- 6♄︎ Saturn12:09 – 13:07
- 7♃︎ Jupiter13:07 – 14:04
- 8♂︎ Mars14:04 – 15:02
- 9☉︎ Sun15:02 – 16:00
- 10♀︎ Venus16:00 – 16:57
- 11☿︎ Mercury16:57 – 17:55
- 12☽︎ Moon17:55 – 18:52
Night
- 1♄︎ Saturn18:52 – 19:55
- 2♃︎ Jupiter19:55 – 20:57
- 3♂︎ Mars20:57 – 22:00
- 4☉︎ Sun22:00 – 23:02
- 5♀︎ Venus23:02 – 00:05
- 6☿︎ Mercury00:05 – 01:07
- 7☽︎ Moon01:07 – 02:10
- 8♄︎ Saturn02:10 – 03:12
- 9♃︎ Jupiter03:12 – 04:15
- 10♂︎ Mars04:15 – 05:17
- 11☉︎ Sun05:17 – 06:20
- 12♀︎ Venus06:20 – 07:22
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Tuesday, 13 October 2026, the Sun rises at 07:21 and sets at 18:52: the day lasts 11h 31m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:22, lasts 12h 30m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Mars, from 07:21 to 08:19: 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.