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, 1 December 2026: day of Mars
- Sunrise
- 05:12
- Sunset
- 17:42
- 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 – 07:17
- 3♀︎ Venus07:17 – 08:19
- 4☿︎ Mercury08:19 – 09:22
- 5☽︎ Moon09:22 – 10:24
- 6♄︎ Saturn10:24 – 11:27
- 7♃︎ Jupiter11:27 – 12:29
- 8♂︎ Mars12:29 – 13:32
- 9☉︎ Sun13:32 – 14:34
- 10♀︎ Venus14:34 – 15:37
- 11☿︎ Mercury15:37 – 16:39
- 12☽︎ Moon16:39 – 17:42
Night
- 1♄︎ Saturn17:42 – 18:39
- 2♃︎ Jupiter18:39 – 19:37
- 3♂︎ Mars19:37 – 20:34
- 4☉︎ Sun20:34 – 21:32
- 5♀︎ Venus21:32 – 22:29
- 6☿︎ Mercury22:29 – 23:27
- 7☽︎ Moon23:27 – 00:24
- 8♄︎ Saturn00:24 – 01:22
- 9♃︎ Jupiter01:22 – 02:19
- 10♂︎ Mars02:19 – 03:17
- 11☉︎ Sun03:17 – 04:15
- 12♀︎ Venus04:15 – 05:12
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Questions
How are the planetary hours calculated in Semarang?
On Tuesday, 1 December 2026, the Sun rises at 05:12 and sets at 17:42: the day lasts 12h 30m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:12, lasts 11h 30m: 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.