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, 7 September 2026: day of the Moon
- Sunrise
- 05:36
- Sunset
- 17:36
- Next sunrise
- 05:35
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Jakarta).
Day
- 1☽︎ Moon05:36 – 06:36
- 2♄︎ Saturn06:36 – 07:36
- 3♃︎ Jupiter07:36 – 08:36
- 4♂︎ Mars08:36 – 09:36
- 5☉︎ Sun09:36 – 10:36
- 6♀︎ Venus10:36 – 11:36
- 7☿︎ Mercury11:36 – 12:36
- 8☽︎ Moon12:36 – 13:36
- 9♄︎ Saturn13:36 – 14:36
- 10♃︎ Jupiter14:36 – 15:36
- 11♂︎ Mars15:36 – 16:36
- 12☉︎ Sun16:36 – 17:36
Night
- 1♀︎ Venus17:36 – 18:36
- 2☿︎ Mercury18:36 – 19:36
- 3☽︎ Moon19:36 – 20:36
- 4♄︎ Saturn20:36 – 21:36
- 5♃︎ Jupiter21:36 – 22:36
- 6♂︎ Mars22:36 – 23:36
- 7☉︎ Sun23:36 – 00:36
- 8♀︎ Venus00:36 – 01:36
- 9☿︎ Mercury01:36 – 02:35
- 10☽︎ Moon02:35 – 03:35
- 11♄︎ Saturn03:35 – 04:35
- 12♃︎ Jupiter04:35 – 05:35
Other cities · Indonesia
Questions
How are the planetary hours calculated in Semarang?
On Monday, 7 September 2026, the Sun rises at 05:36 and sets at 17:36: the day lasts 12h 01m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 05:35, lasts 11h 59m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Moon, from 05:36 to 06:36: 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.