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, 25 September 2026: day of Venus
- Sunrise
- 05:26
- Sunset
- 17:33
- Next sunrise
- 05:25
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:26 – 06:27
- 2☿︎ Mercury06:27 – 07:27
- 3☽︎ Moon07:27 – 08:28
- 4♄︎ Saturn08:28 – 09:28
- 5♃︎ Jupiter09:28 – 10:29
- 6♂︎ Mars10:29 – 11:30
- 7☉︎ Sun11:30 – 12:30
- 8♀︎ Venus12:30 – 13:31
- 9☿︎ Mercury13:31 – 14:31
- 10☽︎ Moon14:31 – 15:32
- 11♄︎ Saturn15:32 – 16:33
- 12♃︎ Jupiter16:33 – 17:33
Night
- 1♂︎ Mars17:33 – 18:33
- 2☉︎ Sun18:33 – 19:32
- 3♀︎ Venus19:32 – 20:31
- 4☿︎ Mercury20:31 – 21:31
- 5☽︎ Moon21:31 – 22:30
- 6♄︎ Saturn22:30 – 23:29
- 7♃︎ Jupiter23:29 – 00:29
- 8♂︎ Mars00:29 – 01:28
- 9☉︎ Sun01:28 – 02:27
- 10♀︎ Venus02:27 – 03:27
- 11☿︎ Mercury03:27 – 04:26
- 12☽︎ Moon04:26 – 05:25
Other cities · Indonesia
Questions
How are the planetary hours calculated in Semarang?
On Friday, 25 September 2026, the Sun rises at 05:26 and sets at 17:33: the day lasts 12h 07m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 05:25, lasts 11h 52m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Venus, from 05:26 to 06:27: 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.