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, 26 August 2026: day of Mercury
- Sunrise
- 05:32
- Sunset
- 17:28
- Next sunrise
- 05:32
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Jakarta).
Day
- 1☿︎ Mercury05:32 – 06:32
- 2☽︎ Moon06:32 – 07:32
- 3♄︎ Saturn07:32 – 08:31
- 4♃︎ Jupiter08:31 – 09:31
- 5♂︎ Mars09:31 – 10:31
- 6☉︎ Sun10:31 – 11:30
- 7♀︎ Venus11:30 – 12:30
- 8☿︎ Mercury12:30 – 13:30
- 9☽︎ Moon13:30 – 14:29
- 10♄︎ Saturn14:29 – 15:29
- 11♃︎ Jupiter15:29 – 16:29
- 12♂︎ Mars16:29 – 17:28
Night
- 1☉︎ Sun17:28 – 18:29
- 2♀︎ Venus18:29 – 19:29
- 3☿︎ Mercury19:29 – 20:29
- 4☽︎ Moon20:29 – 21:30
- 5♄︎ Saturn21:30 – 22:30
- 6♃︎ Jupiter22:30 – 23:30
- 7♂︎ Mars23:30 – 00:31
- 8☉︎ Sun00:31 – 01:31
- 9♀︎ Venus01:31 – 02:31
- 10☿︎ Mercury02:31 – 03:31
- 11☽︎ Moon03:31 – 04:32
- 12♄︎ Saturn04:32 – 05:32
Other cities · Indonesia
Questions
How are the planetary hours calculated in Surabaya?
On Wednesday, 26 August 2026, the Sun rises at 05:32 and sets at 17:28: the day lasts 11h 56m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 05:32, lasts 12h 04m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Mercury, from 05:32 to 06:32: 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.