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 Saturday, 22 August 2026: day of Saturn
- Sunrise
- 05:37
- Sunset
- 18:21
- Next sunrise
- 05:37
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Asia/Bangkok).
Day
- 1♄︎ Saturn05:37 – 06:41
- 2♃︎ Jupiter06:41 – 07:44
- 3♂︎ Mars07:44 – 08:48
- 4☉︎ Sun08:48 – 09:52
- 5♀︎ Venus09:52 – 10:55
- 6☿︎ Mercury10:55 – 11:59
- 7☽︎ Moon11:59 – 13:03
- 8♄︎ Saturn13:03 – 14:06
- 9♃︎ Jupiter14:06 – 15:10
- 10♂︎ Mars15:10 – 16:14
- 11☉︎ Sun16:14 – 17:17
- 12♀︎ Venus17:17 – 18:21
Night
- 1☿︎ Mercury18:21 – 19:17
- 2☽︎ Moon19:17 – 20:14
- 3♄︎ Saturn20:14 – 21:10
- 4♃︎ Jupiter21:10 – 22:06
- 5♂︎ Mars22:06 – 23:03
- 6☉︎ Sun23:03 – 23:59
- 7♀︎ Venus23:59 – 00:55
- 8☿︎ Mercury00:55 – 01:52
- 9☽︎ Moon01:52 – 02:48
- 10♄︎ Saturn02:48 – 03:45
- 11♃︎ Jupiter03:45 – 04:41
- 12♂︎ Mars04:41 – 05:37
Other cities · Vietnam
Questions
How are the planetary hours calculated in Hanoi?
On Saturday, 22 August 2026, the Sun rises at 05:37 and sets at 18:21: the day lasts 12h 44m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 05:37, lasts 11h 16m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Saturn, from 05:37 to 06:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.