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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 05:33
- Sunset
- 18:30
- Next sunrise
- 05:32
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Australia/Perth).
Day
- 1☉︎ Sun05:33 – 06:38
- 2♀︎ Venus06:38 – 07:43
- 3☿︎ Mercury07:43 – 08:47
- 4☽︎ Moon08:47 – 09:52
- 5♄︎ Saturn09:52 – 10:57
- 6♃︎ Jupiter10:57 – 12:02
- 7♂︎ Mars12:02 – 13:06
- 8☉︎ Sun13:06 – 14:11
- 9♀︎ Venus14:11 – 15:16
- 10☿︎ Mercury15:16 – 16:20
- 11☽︎ Moon16:20 – 17:25
- 12♄︎ Saturn17:25 – 18:30
Night
- 1♃︎ Jupiter18:30 – 19:25
- 2♂︎ Mars19:25 – 20:20
- 3☉︎ Sun20:20 – 21:15
- 4♀︎ Venus21:15 – 22:11
- 5☿︎ Mercury22:11 – 23:06
- 6☽︎ Moon23:06 – 00:01
- 7♄︎ Saturn00:01 – 00:56
- 8♃︎ Jupiter00:56 – 01:51
- 9♂︎ Mars01:51 – 02:47
- 10☉︎ Sun02:47 – 03:42
- 11♀︎ Venus03:42 – 04:37
- 12☿︎ Mercury04:37 – 05:32
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Sunday, 18 October 2026, the Sun rises at 05:33 and sets at 18:30: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:32, lasts 11h 03m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Sun, from 05:33 to 06:38: 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.