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, 23 October 2026: day of Venus
- Sunrise
- 05:04
- Sunset
- 17:22
- Next sunrise
- 05:03
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:04 – 06:05
- 2☿︎ Mercury06:05 – 07:07
- 3☽︎ Moon07:07 – 08:08
- 4♄︎ Saturn08:08 – 09:10
- 5♃︎ Jupiter09:10 – 10:11
- 6♂︎ Mars10:11 – 11:13
- 7☉︎ Sun11:13 – 12:14
- 8♀︎ Venus12:14 – 13:16
- 9☿︎ Mercury13:16 – 14:18
- 10☽︎ Moon14:18 – 15:19
- 11♄︎ Saturn15:19 – 16:21
- 12♃︎ Jupiter16:21 – 17:22
Night
- 1♂︎ Mars17:22 – 18:21
- 2☉︎ Sun18:21 – 19:19
- 3♀︎ Venus19:19 – 20:17
- 4☿︎ Mercury20:17 – 21:16
- 5☽︎ Moon21:16 – 22:14
- 6♄︎ Saturn22:14 – 23:13
- 7♃︎ Jupiter23:13 – 00:11
- 8♂︎ Mars00:11 – 01:10
- 9☉︎ Sun01:10 – 02:08
- 10♀︎ Venus02:08 – 03:06
- 11☿︎ Mercury03:06 – 04:05
- 12☽︎ Moon04:05 – 05:03
Other cities · Indonesia
Questions
How are the planetary hours calculated in Surabaya?
On Friday, 23 October 2026, the Sun rises at 05:04 and sets at 17:22: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:03, lasts 11h 41m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Venus, from 05:04 to 06:05: 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.