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, 5 December 2026: day of Saturn
- Sunrise
- 05:03
- Sunset
- 17:35
- Next sunrise
- 05:04
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Asia/Jakarta).
Day
- 1♄︎ Saturn05:03 – 06:06
- 2♃︎ Jupiter06:06 – 07:08
- 3♂︎ Mars07:08 – 08:11
- 4☉︎ Sun08:11 – 09:14
- 5♀︎ Venus09:14 – 10:16
- 6☿︎ Mercury10:16 – 11:19
- 7☽︎ Moon11:19 – 12:22
- 8♄︎ Saturn12:22 – 13:24
- 9♃︎ Jupiter13:24 – 14:27
- 10♂︎ Mars14:27 – 15:29
- 11☉︎ Sun15:29 – 16:32
- 12♀︎ Venus16:32 – 17:35
Night
- 1☿︎ Mercury17:35 – 18:32
- 2☽︎ Moon18:32 – 19:30
- 3♄︎ Saturn19:30 – 20:27
- 4♃︎ Jupiter20:27 – 21:24
- 5♂︎ Mars21:24 – 22:22
- 6☉︎ Sun22:22 – 23:19
- 7♀︎ Venus23:19 – 00:17
- 8☿︎ Mercury00:17 – 01:14
- 9☽︎ Moon01:14 – 02:11
- 10♄︎ Saturn02:11 – 03:09
- 11♃︎ Jupiter03:09 – 04:06
- 12♂︎ Mars04:06 – 05:04
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Questions
How are the planetary hours calculated in Surabaya?
On Saturday, 5 December 2026, the Sun rises at 05:03 and sets at 17:35: the day lasts 12h 31m, 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?
Saturn, from 05:03 to 06:06: 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.