Planetary hours
in Samut Prakan.
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, 13 December 2026: day of the Sun
- Sunrise
- 06:31
- Sunset
- 17:51
- Next sunrise
- 06:32
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Asia/Bangkok).
Day
- 1☉︎ Sun06:31 – 07:28
- 2♀︎ Venus07:28 – 08:24
- 3☿︎ Mercury08:24 – 09:21
- 4☽︎ Moon09:21 – 10:18
- 5♄︎ Saturn10:18 – 11:14
- 6♃︎ Jupiter11:14 – 12:11
- 7♂︎ Mars12:11 – 13:08
- 8☉︎ Sun13:08 – 14:04
- 9♀︎ Venus14:04 – 15:01
- 10☿︎ Mercury15:01 – 15:58
- 11☽︎ Moon15:58 – 16:55
- 12♄︎ Saturn16:55 – 17:51
Night
- 1♃︎ Jupiter17:51 – 18:55
- 2♂︎ Mars18:55 – 19:58
- 3☉︎ Sun19:58 – 21:01
- 4♀︎ Venus21:01 – 22:05
- 5☿︎ Mercury22:05 – 23:08
- 6☽︎ Moon23:08 – 00:11
- 7♄︎ Saturn00:11 – 01:15
- 8♃︎ Jupiter01:15 – 02:18
- 9♂︎ Mars02:18 – 03:21
- 10☉︎ Sun03:21 – 04:25
- 11♀︎ Venus04:25 – 05:28
- 12☿︎ Mercury05:28 – 06:32
Other cities · Thailand
Questions
How are the planetary hours calculated in Samut Prakan?
On Sunday, 13 December 2026, the Sun rises at 06:31 and sets at 17:51: the day lasts 11h 20m, that is twelve day hours of 57 min. The night, until the next sunrise at 06:32, lasts 12h 40m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
The Sun, from 06:31 to 07:28: 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.