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 Tuesday, 20 October 2026: day of Mars
- Sunrise
- 05:31
- Sunset
- 18:31
- Next sunrise
- 05:30
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Australia/Perth).
Day
- 1♂︎ Mars05:31 – 06:36
- 2☉︎ Sun06:36 – 07:41
- 3♀︎ Venus07:41 – 08:46
- 4☿︎ Mercury08:46 – 09:51
- 5☽︎ Moon09:51 – 10:56
- 6♄︎ Saturn10:56 – 12:01
- 7♃︎ Jupiter12:01 – 13:06
- 8♂︎ Mars13:06 – 14:11
- 9☉︎ Sun14:11 – 15:16
- 10♀︎ Venus15:16 – 16:21
- 11☿︎ Mercury16:21 – 17:26
- 12☽︎ Moon17:26 – 18:31
Night
- 1♄︎ Saturn18:31 – 19:26
- 2♃︎ Jupiter19:26 – 20:21
- 3♂︎ Mars20:21 – 21:16
- 4☉︎ Sun21:16 – 22:11
- 5♀︎ Venus22:11 – 23:06
- 6☿︎ Mercury23:06 – 00:01
- 7☽︎ Moon00:01 – 00:55
- 8♄︎ Saturn00:55 – 01:50
- 9♃︎ Jupiter01:50 – 02:45
- 10♂︎ Mars02:45 – 03:40
- 11☉︎ Sun03:40 – 04:35
- 12♀︎ Venus04:35 – 05:30
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Tuesday, 20 October 2026, the Sun rises at 05:31 and sets at 18:31: the day lasts 13h 00m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 05:30, lasts 10h 59m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 05:31 to 06:36: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.