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 Saturday, 22 August 2026: day of Saturn
- Sunrise
- 05:34
- Sunset
- 17:29
- Next sunrise
- 05:34
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Jakarta).
Day
- 1♄︎ Saturn05:34 – 06:34
- 2♃︎ Jupiter06:34 – 07:33
- 3♂︎ Mars07:33 – 08:33
- 4☉︎ Sun08:33 – 09:32
- 5♀︎ Venus09:32 – 10:32
- 6☿︎ Mercury10:32 – 11:32
- 7☽︎ Moon11:32 – 12:31
- 8♄︎ Saturn12:31 – 13:31
- 9♃︎ Jupiter13:31 – 14:30
- 10♂︎ Mars14:30 – 15:30
- 11☉︎ Sun15:30 – 16:29
- 12♀︎ Venus16:29 – 17:29
Night
- 1☿︎ Mercury17:29 – 18:29
- 2☽︎ Moon18:29 – 19:30
- 3♄︎ Saturn19:30 – 20:30
- 4♃︎ Jupiter20:30 – 21:30
- 5♂︎ Mars21:30 – 22:31
- 6☉︎ Sun22:31 – 23:31
- 7♀︎ Venus23:31 – 00:32
- 8☿︎ Mercury00:32 – 01:32
- 9☽︎ Moon01:32 – 02:33
- 10♄︎ Saturn02:33 – 03:33
- 11♃︎ Jupiter03:33 – 04:33
- 12♂︎ Mars04:33 – 05:34
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Questions
How are the planetary hours calculated in Surabaya?
On Saturday, 22 August 2026, the Sun rises at 05:34 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 05:34, lasts 12h 05m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Saturn, from 05:34 to 06:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.