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 Friday, 3 December 2027: day of Venus
- Sunrise
- 05:12
- Sunset
- 17:43
- Next sunrise
- 05:13
A day hour lasts 1h 03m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:12 – 06:15
- 2☿︎ Mercury06:15 – 07:17
- 3☽︎ Moon07:17 – 08:20
- 4♄︎ Saturn08:20 – 09:22
- 5♃︎ Jupiter09:22 – 10:25
- 6♂︎ Mars10:25 – 11:27
- 7☉︎ Sun11:27 – 12:30
- 8♀︎ Venus12:30 – 13:32
- 9☿︎ Mercury13:32 – 14:35
- 10☽︎ Moon14:35 – 15:37
- 11♄︎ Saturn15:37 – 16:40
- 12♃︎ Jupiter16:40 – 17:43
Night
- 1♂︎ Mars17:43 – 18:40
- 2☉︎ Sun18:40 – 19:38
- 3♀︎ Venus19:38 – 20:35
- 4☿︎ Mercury20:35 – 21:33
- 5☽︎ Moon21:33 – 22:30
- 6♄︎ Saturn22:30 – 23:28
- 7♃︎ Jupiter23:28 – 00:25
- 8♂︎ Mars00:25 – 01:23
- 9☉︎ Sun01:23 – 02:20
- 10♀︎ Venus02:20 – 03:18
- 11☿︎ Mercury03:18 – 04:15
- 12☽︎ Moon04:15 – 05:13
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Questions
How are the planetary hours calculated in Semarang?
On Friday, 3 December 2027, the Sun rises at 05:12 and sets at 17:43: the day lasts 12h 30m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:13, lasts 11h 30m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Venus, from 05:12 to 06:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.