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 Wednesday, 2 September 2026: day of Mercury
- Sunrise
- 06:32
- Sunset
- 18:00
- Next sunrise
- 06:31
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Australia/Perth).
Day
- 1☿︎ Mercury06:32 – 07:29
- 2☽︎ Moon07:29 – 08:27
- 3♄︎ Saturn08:27 – 09:24
- 4♃︎ Jupiter09:24 – 10:21
- 5♂︎ Mars10:21 – 11:19
- 6☉︎ Sun11:19 – 12:16
- 7♀︎ Venus12:16 – 13:13
- 8☿︎ Mercury13:13 – 14:11
- 9☽︎ Moon14:11 – 15:08
- 10♄︎ Saturn15:08 – 16:05
- 11♃︎ Jupiter16:05 – 17:03
- 12♂︎ Mars17:03 – 18:00
Night
- 1☉︎ Sun18:00 – 19:03
- 2♀︎ Venus19:03 – 20:05
- 3☿︎ Mercury20:05 – 21:08
- 4☽︎ Moon21:08 – 22:10
- 5♄︎ Saturn22:10 – 23:13
- 6♃︎ Jupiter23:13 – 00:15
- 7♂︎ Mars00:15 – 01:18
- 8☉︎ Sun01:18 – 02:21
- 9♀︎ Venus02:21 – 03:23
- 10☿︎ Mercury03:23 – 04:26
- 11☽︎ Moon04:26 – 05:28
- 12♄︎ Saturn05:28 – 06:31
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Wednesday, 2 September 2026, the Sun rises at 06:32 and sets at 18:00: the day lasts 11h 28m, that is twelve day hours of 57 min. The night, until the next sunrise at 06:31, lasts 12h 31m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mercury, from 06:32 to 07:29: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.