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, 7 December 2026: day of the Moon
- Sunrise
- 05:04
- Sunset
- 17:36
- Next sunrise
- 05:04
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Jakarta).
Day
- 1☽︎ Moon05:04 – 06:07
- 2♄︎ Saturn06:07 – 07:09
- 3♃︎ Jupiter07:09 – 08:12
- 4♂︎ Mars08:12 – 09:15
- 5☉︎ Sun09:15 – 10:17
- 6♀︎ Venus10:17 – 11:20
- 7☿︎ Mercury11:20 – 12:22
- 8☽︎ Moon12:22 – 13:25
- 9♄︎ Saturn13:25 – 14:28
- 10♃︎ Jupiter14:28 – 15:30
- 11♂︎ Mars15:30 – 16:33
- 12☉︎ Sun16:33 – 17:36
Night
- 1♀︎ Venus17:36 – 18:33
- 2☿︎ Mercury18:33 – 19:30
- 3☽︎ Moon19:30 – 20:28
- 4♄︎ Saturn20:28 – 21:25
- 5♃︎ Jupiter21:25 – 22:23
- 6♂︎ Mars22:23 – 23:20
- 7☉︎ Sun23:20 – 00:17
- 8♀︎ Venus00:17 – 01:15
- 9☿︎ Mercury01:15 – 02:12
- 10☽︎ Moon02:12 – 03:10
- 11♄︎ Saturn03:10 – 04:07
- 12♃︎ Jupiter04:07 – 05:04
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Questions
How are the planetary hours calculated in Surabaya?
On Monday, 7 December 2026, the Sun rises at 05:04 and sets at 17:36: the day lasts 12h 32m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 05:04, lasts 11h 29m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Moon, from 05:04 to 06:07: 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.