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 Monday, 17 August 2026: day of the Moon
- Sunrise
- 06:51
- Sunset
- 17:50
- Next sunrise
- 06:50
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Australia/Perth).
Day
- 1☽︎ Moon06:51 – 07:46
- 2♄︎ Saturn07:46 – 08:41
- 3♃︎ Jupiter08:41 – 09:36
- 4♂︎ Mars09:36 – 10:30
- 5☉︎ Sun10:30 – 11:25
- 6♀︎ Venus11:25 – 12:20
- 7☿︎ Mercury12:20 – 13:15
- 8☽︎ Moon13:15 – 14:10
- 9♄︎ Saturn14:10 – 15:05
- 10♃︎ Jupiter15:05 – 16:00
- 11♂︎ Mars16:00 – 16:55
- 12☉︎ Sun16:55 – 17:50
Night
- 1♀︎ Venus17:50 – 18:55
- 2☿︎ Mercury18:55 – 20:00
- 3☽︎ Moon20:00 – 21:05
- 4♄︎ Saturn21:05 – 22:10
- 5♃︎ Jupiter22:10 – 23:15
- 6♂︎ Mars23:15 – 00:20
- 7☉︎ Sun00:20 – 01:25
- 8♀︎ Venus01:25 – 02:30
- 9☿︎ Mercury02:30 – 03:35
- 10☽︎ Moon03:35 – 04:40
- 11♄︎ Saturn04:40 – 05:45
- 12♃︎ Jupiter05:45 – 06:50
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Monday, 17 August 2026, the Sun rises at 06:51 and sets at 17:50: the day lasts 11h 00m, that is twelve day hours of 55 min. The night, until the next sunrise at 06:50, lasts 12h 59m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Moon, from 06:51 to 07:46: 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.