This is not necessarily the case with all religious traditions, and in Christian and Judaic traditions, the Bible starts with a reference to time when God began to create the universe. Nonetheless, in Judaism "the Old Testament has no way of distinguishing between chronological and concrete or 'realistic' time" (Muilenburg, 1961, p
In Islamic tradition, God created the universe in six days but those days are not necessarily equal to the days we have today. In several passages of the Qur'an, God refers to the days in the Day of Judgment as being equal to a thousand or fifty thousand years of this world's days (Yahya, 2010)