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, 30 December 2026: day of Mercury
- Sunrise
- 05:12
- Sunset
- 19:25
- Next sunrise
- 05:13
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Australia/Perth).
Day
- 1☿︎ Mercury05:12 – 06:23
- 2☽︎ Moon06:23 – 07:34
- 3♄︎ Saturn07:34 – 08:45
- 4♃︎ Jupiter08:45 – 09:56
- 5♂︎ Mars09:56 – 11:07
- 6☉︎ Sun11:07 – 12:18
- 7♀︎ Venus12:18 – 13:29
- 8☿︎ Mercury13:29 – 14:41
- 9☽︎ Moon14:41 – 15:52
- 10♄︎ Saturn15:52 – 17:03
- 11♃︎ Jupiter17:03 – 18:14
- 12♂︎ Mars18:14 – 19:25
Night
- 1☉︎ Sun19:25 – 20:14
- 2♀︎ Venus20:14 – 21:03
- 3☿︎ Mercury21:03 – 21:52
- 4☽︎ Moon21:52 – 22:41
- 5♄︎ Saturn22:41 – 23:30
- 6♃︎ Jupiter23:30 – 00:19
- 7♂︎ Mars00:19 – 01:08
- 8☉︎ Sun01:08 – 01:57
- 9♀︎ Venus01:57 – 02:46
- 10☿︎ Mercury02:46 – 03:35
- 11☽︎ Moon03:35 – 04:24
- 12♄︎ Saturn04:24 – 05:13
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Wednesday, 30 December 2026, the Sun rises at 05:12 and sets at 19:25: the day lasts 14h 13m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 05:13, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mercury, from 05:12 to 06:23: 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.