Planetary hours
in Semarang.
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 Monday, 20 December 2027: day of the Moon
- Sunrise
- 05:19
- Sunset
- 17:51
- Next sunrise
- 05:20
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Jakarta).
Day
- 1☽︎ Moon05:19 – 06:22
- 2♄︎ Saturn06:22 – 07:24
- 3♃︎ Jupiter07:24 – 08:27
- 4♂︎ Mars08:27 – 09:30
- 5☉︎ Sun09:30 – 10:32
- 6♀︎ Venus10:32 – 11:35
- 7☿︎ Mercury11:35 – 12:38
- 8☽︎ Moon12:38 – 13:40
- 9♄︎ Saturn13:40 – 14:43
- 10♃︎ Jupiter14:43 – 15:46
- 11♂︎ Mars15:46 – 16:48
- 12☉︎ Sun16:48 – 17:51
Night
- 1♀︎ Venus17:51 – 18:48
- 2☿︎ Mercury18:48 – 19:46
- 3☽︎ Moon19:46 – 20:43
- 4♄︎ Saturn20:43 – 21:41
- 5♃︎ Jupiter21:41 – 22:38
- 6♂︎ Mars22:38 – 23:35
- 7☉︎ Sun23:35 – 00:33
- 8♀︎ Venus00:33 – 01:30
- 9☿︎ Mercury01:30 – 02:27
- 10☽︎ Moon02:27 – 03:25
- 11♄︎ Saturn03:25 – 04:22
- 12♃︎ Jupiter04:22 – 05:20
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Questions
How are the planetary hours calculated in Semarang?
On Monday, 20 December 2027, the Sun rises at 05:19 and sets at 17:51: the day lasts 12h 32m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:20, lasts 11h 29m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Moon, from 05:19 to 06:22: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.