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 Sunday, 17 January 2027: day of the Sun
- Sunrise
- 07:17
- Sunset
- 17:46
- Next sunrise
- 07:17
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Chicago).
Day
- 1☉︎ Sun07:17 – 08:09
- 2♀︎ Venus08:09 – 09:02
- 3☿︎ Mercury09:02 – 09:54
- 4☽︎ Moon09:54 – 10:46
- 5♄︎ Saturn10:46 – 11:39
- 6♃︎ Jupiter11:39 – 12:31
- 7♂︎ Mars12:31 – 13:24
- 8☉︎ Sun13:24 – 14:16
- 9♀︎ Venus14:16 – 15:08
- 10☿︎ Mercury15:08 – 16:01
- 11☽︎ Moon16:01 – 16:53
- 12♄︎ Saturn16:53 – 17:46
Night
- 1♃︎ Jupiter17:46 – 18:53
- 2♂︎ Mars18:53 – 20:01
- 3☉︎ Sun20:01 – 21:08
- 4♀︎ Venus21:08 – 22:16
- 5☿︎ Mercury22:16 – 23:23
- 6☽︎ Moon23:23 – 00:31
- 7♄︎ Saturn00:31 – 01:39
- 8♃︎ Jupiter01:39 – 02:46
- 9♂︎ Mars02:46 – 03:54
- 10☉︎ Sun03:54 – 05:01
- 11♀︎ Venus05:01 – 06:09
- 12☿︎ Mercury06:09 – 07:17
Other cities · United States
Questions
How are the planetary hours calculated in Houston?
On Sunday, 17 January 2027, the Sun rises at 07:17 and sets at 17:46: the day lasts 10h 29m, that is twelve day hours of 52 min. The night, until the next sunrise at 07:17, lasts 13h 31m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
The Sun, from 07:17 to 08:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.