Allah Reprimands Disbelievers for Wasting their Lives.
 
Allah the most Exalted addressed the non-believers reprimanding them for wasting their lives, spending them in a state of disbelief, and not leaving their state of disbelief to a state of belief despite the blessings of long lives that Allah bestowed upon them, as He, the most Glorified, said:
Did We not grant you a life long enough for him who reflected to reflect therein? And the wamer came to you? Now taste [the flavour of your deeds], for evil-doers have no helpers.(35/37)
 Hence, He, the most Glorified, has made the blessing of a long life a reason for one to reflect and ponder, and has made one’s life as proof against him, as He has made messengers and warners proofs and witnesses over him as well. Ibn Kathir said in his Tafsir [exegesis] of this noble verse: “ It means: Did you not live in this life and have such long life spans that had you been of those who benefit from signs and who follow the truth you would have done so in your lives?” Qatada said: “Know that the length of one’s life is a proof against him, so we seek refuge in Allah from being mocked and blamed due to our long lives.”
Al-Bukhari narrated in his Sahih on the authority of Abu Hurayra that the Prophet  (صلى الله عليه وسلم) said, “Allah will not accept the excuse of any person whose instant of death Allah had delayed till he is sixty years of age.”
Imam Ahmad narrated in his Musnad on the authority o f Abu Hurayra that the Prophet  (صلى الله عليه وسلم) said: “Whomsoever Allah grants a life span of sixty years, then He will not accept any excuses from him relating to the shortness o f his life.”Meaning that Allah has removed any excuses that he might cite and he will have no possible excuses, for Allah had granted him such a long lifetime.
(Extracted from The Value of Time pg 14)