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 Sunday, 27 September 2026: day of the Sun
- Sunrise
- 05:16
- Sunset
- 17:24
- Next sunrise
- 05:15
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Asia/Jakarta).
Day
- 1☉︎ Sun05:16 – 06:16
- 2♀︎ Venus06:16 – 07:17
- 3☿︎ Mercury07:17 – 08:18
- 4☽︎ Moon08:18 – 09:18
- 5♄︎ Saturn09:18 – 10:19
- 6♃︎ Jupiter10:19 – 11:20
- 7♂︎ Mars11:20 – 12:20
- 8☉︎ Sun12:20 – 13:21
- 9♀︎ Venus13:21 – 14:22
- 10☿︎ Mercury14:22 – 15:22
- 11☽︎ Moon15:22 – 16:23
- 12♄︎ Saturn16:23 – 17:24
Night
- 1♃︎ Jupiter17:24 – 18:23
- 2♂︎ Mars18:23 – 19:22
- 3☉︎ Sun19:22 – 20:22
- 4♀︎ Venus20:22 – 21:21
- 5☿︎ Mercury21:21 – 22:20
- 6☽︎ Moon22:20 – 23:19
- 7♄︎ Saturn23:19 – 00:19
- 8♃︎ Jupiter00:19 – 01:18
- 9♂︎ Mars01:18 – 02:17
- 10☉︎ Sun02:17 – 03:16
- 11♀︎ Venus03:16 – 04:16
- 12☿︎ Mercury04:16 – 05:15
Other cities · Indonesia
Questions
How are the planetary hours calculated in Surabaya?
On Sunday, 27 September 2026, the Sun rises at 05:16 and sets at 17:24: the day lasts 12h 08m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 05:15, lasts 11h 51m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Sun, from 05:16 to 06:16: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.