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 Thursday, 21 January 2027: day of Jupiter
- Sunrise
- 05:30
- Sunset
- 19:24
- Next sunrise
- 05:31
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Australia/Perth).
Day
- 1♃︎ Jupiter05:30 – 06:40
- 2♂︎ Mars06:40 – 07:49
- 3☉︎ Sun07:49 – 08:59
- 4♀︎ Venus08:59 – 10:08
- 5☿︎ Mercury10:08 – 11:18
- 6☽︎ Moon11:18 – 12:27
- 7♄︎ Saturn12:27 – 13:36
- 8♃︎ Jupiter13:36 – 14:46
- 9♂︎ Mars14:46 – 15:55
- 10☉︎ Sun15:55 – 17:05
- 11♀︎ Venus17:05 – 18:14
- 12☿︎ Mercury18:14 – 19:24
Night
- 1☽︎ Moon19:24 – 20:14
- 2♄︎ Saturn20:14 – 21:05
- 3♃︎ Jupiter21:05 – 21:56
- 4♂︎ Mars21:56 – 22:46
- 5☉︎ Sun22:46 – 23:37
- 6♀︎ Venus23:37 – 00:27
- 7☿︎ Mercury00:27 – 01:18
- 8☽︎ Moon01:18 – 02:09
- 9♄︎ Saturn02:09 – 02:59
- 10♃︎ Jupiter02:59 – 03:50
- 11♂︎ Mars03:50 – 04:41
- 12☉︎ Sun04:41 – 05:31
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Thursday, 21 January 2027, the Sun rises at 05:30 and sets at 19:24: the day lasts 13h 53m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:31, lasts 10h 07m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Jupiter, from 05:30 to 06:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.