Planetary hours
in Jepara.
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 Thursday, 4 December 2025: day of Jupiter
- Sunrise
- 05:12
- Sunset
- 17:42
- Next sunrise
- 05:13
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♃︎ Jupiter05:12 – 06:15
- 2♂︎ Mars06:15 – 07:17
- 3☉︎ Sun07:17 – 08:20
- 4♀︎ Venus08:20 – 09:22
- 5☿︎ Mercury09:22 – 10:25
- 6☽︎ Moon10:25 – 11:27
- 7♄︎ Saturn11:27 – 12:29
- 8♃︎ Jupiter12:29 – 13:32
- 9♂︎ Mars13:32 – 14:34
- 10☉︎ Sun14:34 – 15:37
- 11♀︎ Venus15:37 – 16:39
- 12☿︎ Mercury16:39 – 17:42
Night
- 1☽︎ Moon17:42 – 18:39
- 2♄︎ Saturn18:39 – 19:37
- 3♃︎ Jupiter19:37 – 20:34
- 4♂︎ Mars20:34 – 21:32
- 5☉︎ Sun21:32 – 22:30
- 6♀︎ Venus22:30 – 23:27
- 7☿︎ Mercury23:27 – 00:25
- 8☽︎ Moon00:25 – 01:22
- 9♄︎ Saturn01:22 – 02:20
- 10♃︎ Jupiter02:20 – 03:18
- 11♂︎ Mars03:18 – 04:15
- 12☉︎ Sun04:15 – 05:13
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Questions
How are the planetary hours calculated in Jepara?
On Thursday, 4 December 2025, the Sun rises at 05:12 and sets at 17:42: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:13, lasts 11h 31m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Jupiter, 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: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.