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 Saturday, 21 November 2026: day of Saturn
- Sunrise
- 05:10
- Sunset
- 17:37
- Next sunrise
- 05:10
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♄︎ Saturn05:10 – 06:12
- 2♃︎ Jupiter06:12 – 07:14
- 3♂︎ Mars07:14 – 08:17
- 4☉︎ Sun08:17 – 09:19
- 5♀︎ Venus09:19 – 10:21
- 6☿︎ Mercury10:21 – 11:24
- 7☽︎ Moon11:24 – 12:26
- 8♄︎ Saturn12:26 – 13:28
- 9♃︎ Jupiter13:28 – 14:31
- 10♂︎ Mars14:31 – 15:33
- 11☉︎ Sun15:33 – 16:35
- 12♀︎ Venus16:35 – 17:37
Night
- 1☿︎ Mercury17:37 – 18:35
- 2☽︎ Moon18:35 – 19:33
- 3♄︎ Saturn19:33 – 20:31
- 4♃︎ Jupiter20:31 – 21:28
- 5♂︎ Mars21:28 – 22:26
- 6☉︎ Sun22:26 – 23:24
- 7♀︎ Venus23:24 – 00:21
- 8☿︎ Mercury00:21 – 01:19
- 9☽︎ Moon01:19 – 02:17
- 10♄︎ Saturn02:17 – 03:15
- 11♃︎ Jupiter03:15 – 04:12
- 12♂︎ Mars04:12 – 05:10
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Questions
How are the planetary hours calculated in Semarang?
On Saturday, 21 November 2026, the Sun rises at 05:10 and sets at 17:37: the day lasts 12h 28m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:10, lasts 11h 32m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Saturn, from 05:10 to 06:12: 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.