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, 23 December 2026: day of Mercury
- Sunrise
- 06:29
- Sunset
- 17:21
- Next sunrise
- 06:30
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Asia/Bangkok).
Day
- 1☿︎ Mercury06:29 – 07:24
- 2☽︎ Moon07:24 – 08:18
- 3♄︎ Saturn08:18 – 09:12
- 4♃︎ Jupiter09:12 – 10:06
- 5♂︎ Mars10:06 – 11:01
- 6☉︎ Sun11:01 – 11:55
- 7♀︎ Venus11:55 – 12:49
- 8☿︎ Mercury12:49 – 13:44
- 9☽︎ Moon13:44 – 14:38
- 10♄︎ Saturn14:38 – 15:32
- 11♃︎ Jupiter15:32 – 16:26
- 12♂︎ Mars16:26 – 17:21
Night
- 1☉︎ Sun17:21 – 18:27
- 2♀︎ Venus18:27 – 19:32
- 3☿︎ Mercury19:32 – 20:38
- 4☽︎ Moon20:38 – 21:44
- 5♄︎ Saturn21:44 – 22:50
- 6♃︎ Jupiter22:50 – 23:55
- 7♂︎ Mars23:55 – 01:01
- 8☉︎ Sun01:01 – 02:07
- 9♀︎ Venus02:07 – 03:13
- 10☿︎ Mercury03:13 – 04:18
- 11☽︎ Moon04:18 – 05:24
- 12♄︎ Saturn05:24 – 06:30
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Wednesday, 23 December 2026, the Sun rises at 06:29 and sets at 17:21: the day lasts 10h 51m, that is twelve day hours of 54 min. The night, until the next sunrise at 06:30, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mercury, from 06:29 to 07:24: 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.