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, 27 January 2027: day of Mercury
- Sunrise
- 05:36
- Sunset
- 19:21
- Next sunrise
- 05:37
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Australia/Perth).
Day
- 1☿︎ Mercury05:36 – 06:45
- 2☽︎ Moon06:45 – 07:53
- 3♄︎ Saturn07:53 – 09:02
- 4♃︎ Jupiter09:02 – 10:11
- 5♂︎ Mars10:11 – 11:20
- 6☉︎ Sun11:20 – 12:28
- 7♀︎ Venus12:28 – 13:37
- 8☿︎ Mercury13:37 – 14:46
- 9☽︎ Moon14:46 – 15:55
- 10♄︎ Saturn15:55 – 17:03
- 11♃︎ Jupiter17:03 – 18:12
- 12♂︎ Mars18:12 – 19:21
Night
- 1☉︎ Sun19:21 – 20:12
- 2♀︎ Venus20:12 – 21:04
- 3☿︎ Mercury21:04 – 21:55
- 4☽︎ Moon21:55 – 22:46
- 5♄︎ Saturn22:46 – 23:38
- 6♃︎ Jupiter23:38 – 00:29
- 7♂︎ Mars00:29 – 01:20
- 8☉︎ Sun01:20 – 02:12
- 9♀︎ Venus02:12 – 03:03
- 10☿︎ Mercury03:03 – 03:54
- 11☽︎ Moon03:54 – 04:46
- 12♄︎ Saturn04:46 – 05:37
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Wednesday, 27 January 2027, the Sun rises at 05:36 and sets at 19:21: the day lasts 13h 45m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 05:37, lasts 10h 16m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mercury, from 05:36 to 06:45: 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.