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 Friday, 12 June 2026: day of Venus
- Sunrise
- 05:37
- Sunset
- 17:20
- Next sunrise
- 05:37
A day hour lasts 59 min; a night hour, 1h 01m. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:37 – 06:36
- 2☿︎ Mercury06:36 – 07:34
- 3☽︎ Moon07:34 – 08:33
- 4♄︎ Saturn08:33 – 09:31
- 5♃︎ Jupiter09:31 – 10:30
- 6♂︎ Mars10:30 – 11:28
- 7☉︎ Sun11:28 – 12:27
- 8♀︎ Venus12:27 – 13:25
- 9☿︎ Mercury13:25 – 14:24
- 10☽︎ Moon14:24 – 15:22
- 11♄︎ Saturn15:22 – 16:21
- 12♃︎ Jupiter16:21 – 17:20
Night
- 1♂︎ Mars17:20 – 18:21
- 2☉︎ Sun18:21 – 19:23
- 3♀︎ Venus19:23 – 20:24
- 4☿︎ Mercury20:24 – 21:25
- 5☽︎ Moon21:25 – 22:27
- 6♄︎ Saturn22:27 – 23:28
- 7♃︎ Jupiter23:28 – 00:30
- 8♂︎ Mars00:30 – 01:31
- 9☉︎ Sun01:31 – 02:33
- 10♀︎ Venus02:33 – 03:34
- 11☿︎ Mercury03:34 – 04:36
- 12☽︎ Moon04:36 – 05:37
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Questions
How are the planetary hours calculated in Surabaya?
On Friday, 12 June 2026, the Sun rises at 05:37 and sets at 17:20: the day lasts 11h 42m, that is twelve day hours of 59 min. The night, until the next sunrise at 05:37, lasts 12h 18m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
Venus, from 05:37 to 06:36: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.