Are you offering your prayers at the right time?

The Messenger of Allah (sallAllaahu ‘alyhi wasallam) was asked about the times of prayers. He said: The time for Fajr [the morning prayer] (lasts) as long as the first visible part of the rising sun does not appear and the time of the Dhuhr [noon prayer] is when the sun declines from the zenith and there is not a time for “Asr [the afternoon prayer] and the time for ‘Asr [the afternoon prayer] is so long as the sun does not become pale and its first visible part does not set, and the time for Maghrib [the evening prayer] is that when the sun disappears and (it lasts) till the twilight is no more and the time for ‘Isha [the night prayer] is up to the midnight.

[Muslim :: Book 4 : Hadith 1276]