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 Thursday, 15 October 2026: day of Jupiter
- Sunrise
- 05:07
- Sunset
- 17:22
- Next sunrise
- 05:06
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Asia/Jakarta).
Day
- 1♃︎ Jupiter05:07 – 06:08
- 2♂︎ Mars06:08 – 07:09
- 3☉︎ Sun07:09 – 08:11
- 4♀︎ Venus08:11 – 09:12
- 5☿︎ Mercury09:12 – 10:13
- 6☽︎ Moon10:13 – 11:14
- 7♄︎ Saturn11:14 – 12:16
- 8♃︎ Jupiter12:16 – 13:17
- 9♂︎ Mars13:17 – 14:18
- 10☉︎ Sun14:18 – 15:20
- 11♀︎ Venus15:20 – 16:21
- 12☿︎ Mercury16:21 – 17:22
Night
- 1☽︎ Moon17:22 – 18:21
- 2♄︎ Saturn18:21 – 19:19
- 3♃︎ Jupiter19:19 – 20:18
- 4♂︎ Mars20:18 – 21:17
- 5☉︎ Sun21:17 – 22:15
- 6♀︎ Venus22:15 – 23:14
- 7☿︎ Mercury23:14 – 00:13
- 8☽︎ Moon00:13 – 01:12
- 9♄︎ Saturn01:12 – 02:10
- 10♃︎ Jupiter02:10 – 03:09
- 11♂︎ Mars03:09 – 04:08
- 12☉︎ Sun04:08 – 05:06
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Questions
How are the planetary hours calculated in Surabaya?
On Thursday, 15 October 2026, the Sun rises at 05:07 and sets at 17:22: the day lasts 12h 15m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 05:06, lasts 11h 44m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Jupiter, from 05:07 to 06:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.