Please explain the exect time duration of moring,evening,and night?

Question

Please explain the exect time duration of moring,evening,and night?

Answer 1

Morning is the part of the day usually reckoned from either midnight or dawn to noon.

Afternoon is the time of day from 12:00 (noon) to ?

depending upon context

Evening is the period in which the daylight is decreasing, between the late afternoon and night, around the time when dinner is taken.

Night or nighttime is the period of time when the sun is below the horizon.  

Answer 2

Morning starts one hour before sunrise. Evening ends one hour after sunset. Noon is exactly half of sunrise and sunset.

Answer 3

There is no "exact" duration.  These are very subjective and ill-defined terms.  Others are dawn, dusk, midday, and twilight.  Your question is kind of like asking exactly where on the spectrum orange ends and red begins.

Answer 4

they vary depending on time of year

Answer 5

on two equinoxes, the day is of 24 hours.

mid day is 12:00 noon,exactly when the sun is overhead.

so from the above we can say day starts at 6:00 am and night starts at 6:00 pm.

on remaining days of the year this depends on the position of the sun.