It is He who made the sun to be a shining glory and the moon to be a light (of beauty), and measured out stages for it; that ye might know the number of years and the count (of time). Nowise did Allah create this but in truth and righteousness. (Thus) doth He explain His Signs in detail, for those who understand.[Qur'an 10:5]

Narrated Abu Huraira(RA): Allah's Apostle(PBUH) said, "the hour will not be established till the Sun rises from the West; and when it rises (from the West) and the people see it, they all will believe. And that is (the time) when no good will it do to a soul to believe then." then he recited the whole Verse (6.158)