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, 2 October 2026: day of Venus
- Sunrise
- 05:22
- Sunset
- 17:32
- Next sunrise
- 05:22
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:22 – 06:23
- 2☿︎ Mercury06:23 – 07:24
- 3☽︎ Moon07:24 – 08:25
- 4♄︎ Saturn08:25 – 09:26
- 5♃︎ Jupiter09:26 – 10:26
- 6♂︎ Mars10:26 – 11:27
- 7☉︎ Sun11:27 – 12:28
- 8♀︎ Venus12:28 – 13:29
- 9☿︎ Mercury13:29 – 14:30
- 10☽︎ Moon14:30 – 15:31
- 11♄︎ Saturn15:31 – 16:31
- 12♃︎ Jupiter16:31 – 17:32
Night
- 1♂︎ Mars17:32 – 18:31
- 2☉︎ Sun18:31 – 19:31
- 3♀︎ Venus19:31 – 20:30
- 4☿︎ Mercury20:30 – 21:29
- 5☽︎ Moon21:29 – 22:28
- 6♄︎ Saturn22:28 – 23:27
- 7♃︎ Jupiter23:27 – 00:26
- 8♂︎ Mars00:26 – 01:25
- 9☉︎ Sun01:25 – 02:24
- 10♀︎ Venus02:24 – 03:24
- 11☿︎ Mercury03:24 – 04:23
- 12☽︎ Moon04:23 – 05:22
Other cities · Indonesia
Questions
How are the planetary hours calculated in Semarang?
On Friday, 2 October 2026, the Sun rises at 05:22 and sets at 17:32: the day lasts 12h 10m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 05:22, lasts 11h 49m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Venus, from 05:22 to 06:23: 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.