Planetary hours
in Surabaya.
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, 24 August 2026: day of the Moon
- Sunrise
- 05:33
- Sunset
- 17:29
- Next sunrise
- 05:33
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Jakarta).
Day
- 1☽︎ Moon05:33 – 06:33
- 2♄︎ Saturn06:33 – 07:33
- 3♃︎ Jupiter07:33 – 08:32
- 4♂︎ Mars08:32 – 09:32
- 5☉︎ Sun09:32 – 10:31
- 6♀︎ Venus10:31 – 11:31
- 7☿︎ Mercury11:31 – 12:31
- 8☽︎ Moon12:31 – 13:30
- 9♄︎ Saturn13:30 – 14:30
- 10♃︎ Jupiter14:30 – 15:29
- 11♂︎ Mars15:29 – 16:29
- 12☉︎ Sun16:29 – 17:29
Night
- 1♀︎ Venus17:29 – 18:29
- 2☿︎ Mercury18:29 – 19:29
- 3☽︎ Moon19:29 – 20:30
- 4♄︎ Saturn20:30 – 21:30
- 5♃︎ Jupiter21:30 – 22:30
- 6♂︎ Mars22:30 – 23:31
- 7☉︎ Sun23:31 – 00:31
- 8♀︎ Venus00:31 – 01:31
- 9☿︎ Mercury01:31 – 02:32
- 10☽︎ Moon02:32 – 03:32
- 11♄︎ Saturn03:32 – 04:33
- 12♃︎ Jupiter04:33 – 05:33
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Questions
How are the planetary hours calculated in Surabaya?
On Monday, 24 August 2026, the Sun rises at 05:33 and sets at 17:29: the day lasts 11h 55m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 05:33, lasts 12h 04m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
The Moon, from 05:33 to 06:33: 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.