Planetary hours
in Jurong West.
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 Tuesday, 15 December 2026: day of Mars
- Sunrise
- 06:58
- Sunset
- 19:01
- Next sunrise
- 06:59
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Asia/Singapore).
Day
- 1♂︎ Mars06:58 – 07:58
- 2☉︎ Sun07:58 – 08:59
- 3♀︎ Venus08:59 – 09:59
- 4☿︎ Mercury09:59 – 10:59
- 5☽︎ Moon10:59 – 11:59
- 6♄︎ Saturn11:59 – 13:00
- 7♃︎ Jupiter13:00 – 14:00
- 8♂︎ Mars14:00 – 15:00
- 9☉︎ Sun15:00 – 16:00
- 10♀︎ Venus16:00 – 17:01
- 11☿︎ Mercury17:01 – 18:01
- 12☽︎ Moon18:01 – 19:01
Night
- 1♄︎ Saturn19:01 – 20:01
- 2♃︎ Jupiter20:01 – 21:01
- 3♂︎ Mars21:01 – 22:00
- 4☉︎ Sun22:00 – 23:00
- 5♀︎ Venus23:00 – 00:00
- 6☿︎ Mercury00:00 – 01:00
- 7☽︎ Moon01:00 – 02:00
- 8♄︎ Saturn02:00 – 02:59
- 9♃︎ Jupiter02:59 – 03:59
- 10♂︎ Mars03:59 – 04:59
- 11☉︎ Sun04:59 – 05:59
- 12♀︎ Venus05:59 – 06:59
Other cities · Singapore
Questions
How are the planetary hours calculated in Jurong West?
On Tuesday, 15 December 2026, the Sun rises at 06:58 and sets at 19:01: the day lasts 12h 03m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 06:59, lasts 11h 58m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Mars, from 06:58 to 07:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.