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, 21 November 2025: day of Venus
- Sunrise
- 05:00
- Sunset
- 17:29
- Next sunrise
- 05:00
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Asia/Jakarta).
Day
- 1♀︎ Venus05:00 – 06:03
- 2☿︎ Mercury06:03 – 07:05
- 3☽︎ Moon07:05 – 08:07
- 4♄︎ Saturn08:07 – 09:10
- 5♃︎ Jupiter09:10 – 10:12
- 6♂︎ Mars10:12 – 11:14
- 7☉︎ Sun11:14 – 12:17
- 8♀︎ Venus12:17 – 13:19
- 9☿︎ Mercury13:19 – 14:21
- 10☽︎ Moon14:21 – 15:24
- 11♄︎ Saturn15:24 – 16:26
- 12♃︎ Jupiter16:26 – 17:29
Night
- 1♂︎ Mars17:29 – 18:26
- 2☉︎ Sun18:26 – 19:24
- 3♀︎ Venus19:24 – 20:22
- 4☿︎ Mercury20:22 – 21:19
- 5☽︎ Moon21:19 – 22:17
- 6♄︎ Saturn22:17 – 23:14
- 7♃︎ Jupiter23:14 – 00:12
- 8♂︎ Mars00:12 – 01:10
- 9☉︎ Sun01:10 – 02:07
- 10♀︎ Venus02:07 – 03:05
- 11☿︎ Mercury03:05 – 04:03
- 12☽︎ Moon04:03 – 05:00
Other cities · Indonesia
Questions
How are the planetary hours calculated in Surabaya?
On Friday, 21 November 2025, the Sun rises at 05:00 and sets at 17:29: the day lasts 12h 28m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 05:00, lasts 11h 32m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Venus, from 05:00 to 06:03: 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.