Planetary hours
in Perth.
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 Friday, 31 July 2026: day of Venus
- Sunrise
- 07:06
- Sunset
- 17:39
- Next sunrise
- 07:05
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Australia/Perth).
Day
- 1♀︎ Venus07:06 – 07:59
- 2☿︎ Mercury07:59 – 08:52
- 3☽︎ Moon08:52 – 09:44
- 4♄︎ Saturn09:44 – 10:37
- 5♃︎ Jupiter10:37 – 11:30
- 6♂︎ Mars11:30 – 12:23
- 7☉︎ Sun12:23 – 13:15
- 8♀︎ Venus13:15 – 14:08
- 9☿︎ Mercury14:08 – 15:01
- 10☽︎ Moon15:01 – 15:54
- 11♄︎ Saturn15:54 – 16:47
- 12♃︎ Jupiter16:47 – 17:39
Night
- 1♂︎ Mars17:39 – 18:47
- 2☉︎ Sun18:47 – 19:54
- 3♀︎ Venus19:54 – 21:01
- 4☿︎ Mercury21:01 – 22:08
- 5☽︎ Moon22:08 – 23:15
- 6♄︎ Saturn23:15 – 00:22
- 7♃︎ Jupiter00:22 – 01:29
- 8♂︎ Mars01:29 – 02:37
- 9☉︎ Sun02:37 – 03:44
- 10♀︎ Venus03:44 – 04:51
- 11☿︎ Mercury04:51 – 05:58
- 12☽︎ Moon05:58 – 07:05
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Friday, 31 July 2026, the Sun rises at 07:06 and sets at 17:39: the day lasts 10h 33m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:05, lasts 13h 26m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Venus, from 07:06 to 07:59: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.