Hadrat ‘Uqbah bin ‘Amir (Radi Allaahu Ta’ala Anhu) narrated that the Messenger of ALLAH (Sallallahu Alaihi Wa Sallam) said: There were three times at which the Messenger of ALLAH used to forbid us to perform Salaah or bury our dead.
1. When the sun begins to rise till it is fully up.
2. When the sun is at its height at mid day till it passes the meridian.
3. When the sun draws near to setting till it sets. [Muslim]