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 Saturday, 12 December 2026: day of Saturn
- Sunrise
- 05:15
- Sunset
- 17:45
- Next sunrise
- 05:16
A day hour lasts 1h 03m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♄︎ Saturn05:15 – 06:18
- 2♃︎ Jupiter06:18 – 07:20
- 3♂︎ Mars07:20 – 08:23
- 4☉︎ Sun08:23 – 09:25
- 5♀︎ Venus09:25 – 10:28
- 6☿︎ Mercury10:28 – 11:30
- 7☽︎ Moon11:30 – 12:33
- 8♄︎ Saturn12:33 – 13:35
- 9♃︎ Jupiter13:35 – 14:38
- 10♂︎ Mars14:38 – 15:40
- 11☉︎ Sun15:40 – 16:43
- 12♀︎ Venus16:43 – 17:45
Night
- 1☿︎ Mercury17:45 – 18:43
- 2☽︎ Moon18:43 – 19:40
- 3♄︎ Saturn19:40 – 20:38
- 4♃︎ Jupiter20:38 – 21:36
- 5♂︎ Mars21:36 – 22:33
- 6☉︎ Sun22:33 – 23:31
- 7♀︎ Venus23:31 – 00:28
- 8☿︎ Mercury00:28 – 01:26
- 9☽︎ Moon01:26 – 02:23
- 10♄︎ Saturn02:23 – 03:21
- 11♃︎ Jupiter03:21 – 04:18
- 12♂︎ Mars04:18 – 05:16
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Questions
How are the planetary hours calculated in Jepara?
On Saturday, 12 December 2026, the Sun rises at 05:15 and sets at 17:45: the day lasts 12h 30m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:16, lasts 11h 30m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Saturn, from 05:15 to 06:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.