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 Wednesday, 28 October 2026: day of Mercury
- Sunrise
- 05:02
- Sunset
- 17:23
- Next sunrise
- 05:02
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1☿︎ Mercury05:02 – 06:04
- 2☽︎ Moon06:04 – 07:06
- 3♄︎ Saturn07:06 – 08:07
- 4♃︎ Jupiter08:07 – 09:09
- 5♂︎ Mars09:09 – 10:11
- 6☉︎ Sun10:11 – 11:12
- 7♀︎ Venus11:12 – 12:14
- 8☿︎ Mercury12:14 – 13:16
- 9☽︎ Moon13:16 – 14:17
- 10♄︎ Saturn14:17 – 15:19
- 11♃︎ Jupiter15:19 – 16:21
- 12♂︎ Mars16:21 – 17:23
Night
- 1☉︎ Sun17:23 – 18:21
- 2♀︎ Venus18:21 – 19:19
- 3☿︎ Mercury19:19 – 20:17
- 4☽︎ Moon20:17 – 21:16
- 5♄︎ Saturn21:16 – 22:14
- 6♃︎ Jupiter22:14 – 23:12
- 7♂︎ Mars23:12 – 00:10
- 8☉︎ Sun00:10 – 01:09
- 9♀︎ Venus01:09 – 02:07
- 10☿︎ Mercury02:07 – 03:05
- 11☽︎ Moon03:05 – 04:04
- 12♄︎ Saturn04:04 – 05:02
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Questions
How are the planetary hours calculated in Surabaya?
On Wednesday, 28 October 2026, the Sun rises at 05:02 and sets at 17:23: the day lasts 12h 20m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:02, lasts 11h 39m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mercury, from 05:02 to 06:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.