Prophet Hud - 11:7
"He it is Who created the heavens and the earth in six days, to test which of you is the best in work. His sovereignty was over the waters. Nevertheless, if you say to the disbelievers, "You will be resurrected after death,"they will say, "This is only clear magic."
According to the Qur'an, time is relative:
The Prostration/32:5
He controls all affairs from the heavens to the earth. Then they ascend to Him in a day equal to a thousand years of what you count.
The Ways of Ascent/70:4
To Him ascend the angels and the spirit (revelation/commands/Command/Jebrail) in a day equal to fifty thousand years.
The Pilgrimage/22:47
They challenge you to bring that torment quickly. Allah does not break His promise. A day with your Lord is like a thousand years in their reckoning.