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 Saturday, 12 December 2026: day of Saturn
- Sunrise
- 05:03
- Sunset
- 19:16
- Next sunrise
- 05:04
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Australia/Perth).
Day
- 1♄︎ Saturn05:03 – 06:15
- 2♃︎ Jupiter06:15 – 07:26
- 3♂︎ Mars07:26 – 08:37
- 4☉︎ Sun08:37 – 09:48
- 5♀︎ Venus09:48 – 10:59
- 6☿︎ Mercury10:59 – 12:10
- 7☽︎ Moon12:10 – 13:21
- 8♄︎ Saturn13:21 – 14:32
- 9♃︎ Jupiter14:32 – 15:43
- 10♂︎ Mars15:43 – 16:54
- 11☉︎ Sun16:54 – 18:05
- 12♀︎ Venus18:05 – 19:16
Night
- 1☿︎ Mercury19:16 – 20:05
- 2☽︎ Moon20:05 – 20:54
- 3♄︎ Saturn20:54 – 21:43
- 4♃︎ Jupiter21:43 – 22:32
- 5♂︎ Mars22:32 – 23:21
- 6☉︎ Sun23:21 – 00:10
- 7♀︎ Venus00:10 – 00:59
- 8☿︎ Mercury00:59 – 01:48
- 9☽︎ Moon01:48 – 02:37
- 10♄︎ Saturn02:37 – 03:26
- 11♃︎ Jupiter03:26 – 04:15
- 12♂︎ Mars04:15 – 05:04
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Saturday, 12 December 2026, the Sun rises at 05:03 and sets at 19:16: the day lasts 14h 12m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:04, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Saturn, from 05:03 to 06:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.