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 Monday, 28 December 2026: day of the Moon
- Sunrise
- 07:15
- Sunset
- 17:30
- Next sunrise
- 07:15
A day hour lasts 51 min; a night hour, 1h 09m. Local time (America/Chicago).
Day
- 1☽︎ Moon07:15 – 08:06
- 2♄︎ Saturn08:06 – 08:58
- 3♃︎ Jupiter08:58 – 09:49
- 4♂︎ Mars09:49 – 10:40
- 5☉︎ Sun10:40 – 11:31
- 6♀︎ Venus11:31 – 12:23
- 7☿︎ Mercury12:23 – 13:14
- 8☽︎ Moon13:14 – 14:05
- 9♄︎ Saturn14:05 – 14:56
- 10♃︎ Jupiter14:56 – 15:48
- 11♂︎ Mars15:48 – 16:39
- 12☉︎ Sun16:39 – 17:30
Night
- 1♀︎ Venus17:30 – 18:39
- 2☿︎ Mercury18:39 – 19:48
- 3☽︎ Moon19:48 – 20:56
- 4♄︎ Saturn20:56 – 22:05
- 5♃︎ Jupiter22:05 – 23:14
- 6♂︎ Mars23:14 – 00:23
- 7☉︎ Sun00:23 – 01:32
- 8♀︎ Venus01:32 – 02:40
- 9☿︎ Mercury02:40 – 03:49
- 10☽︎ Moon03:49 – 04:58
- 11♄︎ Saturn04:58 – 06:07
- 12♃︎ Jupiter06:07 – 07:15
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Monday, 28 December 2026, the Sun rises at 07:15 and sets at 17:30: the day lasts 10h 15m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:15, lasts 13h 45m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
The Moon, from 07:15 to 08:06: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.