Planetary hours
in Hanoi.
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, 16 December 2026: day of Mercury
- Sunrise
- 06:26
- Sunset
- 17:18
- Next sunrise
- 06:26
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Asia/Bangkok).
Day
- 1☿︎ Mercury06:26 – 07:20
- 2☽︎ Moon07:20 – 08:14
- 3♄︎ Saturn08:14 – 09:09
- 4♃︎ Jupiter09:09 – 10:03
- 5♂︎ Mars10:03 – 10:57
- 6☉︎ Sun10:57 – 11:52
- 7♀︎ Venus11:52 – 12:46
- 8☿︎ Mercury12:46 – 13:40
- 9☽︎ Moon13:40 – 14:35
- 10♄︎ Saturn14:35 – 15:29
- 11♃︎ Jupiter15:29 – 16:23
- 12♂︎ Mars16:23 – 17:18
Night
- 1☉︎ Sun17:18 – 18:23
- 2♀︎ Venus18:23 – 19:29
- 3☿︎ Mercury19:29 – 20:35
- 4☽︎ Moon20:35 – 21:40
- 5♄︎ Saturn21:40 – 22:46
- 6♃︎ Jupiter22:46 – 23:52
- 7♂︎ Mars23:52 – 00:58
- 8☉︎ Sun00:58 – 02:03
- 9♀︎ Venus02:03 – 03:09
- 10☿︎ Mercury03:09 – 04:15
- 11☽︎ Moon04:15 – 05:20
- 12♄︎ Saturn05:20 – 06:26
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Wednesday, 16 December 2026, the Sun rises at 06:26 and sets at 17:18: the day lasts 10h 52m, that is twelve day hours of 54 min. The night, until the next sunrise at 06:26, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mercury, from 06:26 to 07:20: 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.