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 Sunday, 17 January 2027: day of the Sun
- Sunrise
- 05:27
- Sunset
- 19:25
- Next sunrise
- 05:27
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Australia/Perth).
Day
- 1☉︎ Sun05:27 – 06:36
- 2♀︎ Venus06:36 – 07:46
- 3☿︎ Mercury07:46 – 08:56
- 4☽︎ Moon08:56 – 10:06
- 5♄︎ Saturn10:06 – 11:16
- 6♃︎ Jupiter11:16 – 12:26
- 7♂︎ Mars12:26 – 13:36
- 8☉︎ Sun13:36 – 14:46
- 9♀︎ Venus14:46 – 15:55
- 10☿︎ Mercury15:55 – 17:05
- 11☽︎ Moon17:05 – 18:15
- 12♄︎ Saturn18:15 – 19:25
Night
- 1♃︎ Jupiter19:25 – 20:15
- 2♂︎ Mars20:15 – 21:05
- 3☉︎ Sun21:05 – 21:56
- 4♀︎ Venus21:56 – 22:46
- 5☿︎ Mercury22:46 – 23:36
- 6☽︎ Moon23:36 – 00:26
- 7♄︎ Saturn00:26 – 01:16
- 8♃︎ Jupiter01:16 – 02:07
- 9♂︎ Mars02:07 – 02:57
- 10☉︎ Sun02:57 – 03:47
- 11♀︎ Venus03:47 – 04:37
- 12☿︎ Mercury04:37 – 05:27
Other cities · Australia
Questions
How are the planetary hours calculated in Perth?
On Sunday, 17 January 2027, the Sun rises at 05:27 and sets at 19:25: the day lasts 13h 58m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 05:27, lasts 10h 02m: twelve night hours of 50 min.
Which planet rules the first hour that day?
The Sun, from 05:27 to 06:36: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.