Planetary hours
in Tehran.
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, 17 January 2027: day of the Sun
- Sunrise
- 07:12
- Sunset
- 17:15
- Next sunrise
- 07:12
A day hour lasts 50 min; a night hour, 1h 10m. Local time (Asia/Tehran).
Day
- 1☉︎ Sun07:12 – 08:03
- 2♀︎ Venus08:03 – 08:53
- 3☿︎ Mercury08:53 – 09:43
- 4☽︎ Moon09:43 – 10:33
- 5♄︎ Saturn10:33 – 11:24
- 6♃︎ Jupiter11:24 – 12:14
- 7♂︎ Mars12:14 – 13:04
- 8☉︎ Sun13:04 – 13:54
- 9♀︎ Venus13:54 – 14:45
- 10☿︎ Mercury14:45 – 15:35
- 11☽︎ Moon15:35 – 16:25
- 12♄︎ Saturn16:25 – 17:15
Night
- 1♃︎ Jupiter17:15 – 18:25
- 2♂︎ Mars18:25 – 19:35
- 3☉︎ Sun19:35 – 20:45
- 4♀︎ Venus20:45 – 21:54
- 5☿︎ Mercury21:54 – 23:04
- 6☽︎ Moon23:04 – 00:14
- 7♄︎ Saturn00:14 – 01:23
- 8♃︎ Jupiter01:23 – 02:33
- 9♂︎ Mars02:33 – 03:43
- 10☉︎ Sun03:43 – 04:53
- 11♀︎ Venus04:53 – 06:02
- 12☿︎ Mercury06:02 – 07:12
Questions
How are the planetary hours calculated in Tehran?
On Sunday, 17 January 2027, the Sun rises at 07:12 and sets at 17:15: the day lasts 10h 03m, that is twelve day hours of 50 min. The night, until the next sunrise at 07:12, lasts 13h 57m: twelve night hours of 1h 10m.
Which planet rules the first hour that day?
The Sun, from 07:12 to 08:03: 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.