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 Tuesday, 27 October 2026: day of Mars
- Sunrise
- 05:12
- Sunset
- 17:32
- Next sunrise
- 05:12
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♂︎ Mars05:12 – 06:14
- 2☉︎ Sun06:14 – 07:15
- 3♀︎ Venus07:15 – 08:17
- 4☿︎ Mercury08:17 – 09:18
- 5☽︎ Moon09:18 – 10:20
- 6♄︎ Saturn10:20 – 11:22
- 7♃︎ Jupiter11:22 – 12:23
- 8♂︎ Mars12:23 – 13:25
- 9☉︎ Sun13:25 – 14:27
- 10♀︎ Venus14:27 – 15:28
- 11☿︎ Mercury15:28 – 16:30
- 12☽︎ Moon16:30 – 17:32
Night
- 1♄︎ Saturn17:32 – 18:30
- 2♃︎ Jupiter18:30 – 19:28
- 3♂︎ Mars19:28 – 20:27
- 4☉︎ Sun20:27 – 21:25
- 5♀︎ Venus21:25 – 22:23
- 6☿︎ Mercury22:23 – 23:22
- 7☽︎ Moon23:22 – 00:20
- 8♄︎ Saturn00:20 – 01:18
- 9♃︎ Jupiter01:18 – 02:17
- 10♂︎ Mars02:17 – 03:15
- 11☉︎ Sun03:15 – 04:13
- 12♀︎ Venus04:13 – 05:12
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Questions
How are the planetary hours calculated in Semarang?
On Tuesday, 27 October 2026, the Sun rises at 05:12 and sets at 17:32: the day lasts 12h 20m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:12, lasts 11h 40m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 05:12 to 06:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.