Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:33:42

And exalt Him morning and afternoon.  

And glorify Him morning and evening, in other words, at the beginning of the day and at the end of it.
القرآن:٣٣:٤٢

وَسَبِّحُوهُ بُكْرَةً وَأَصِيلًا  

{وسبحوه بكرةً وأصيلا} أول النهار وآخره.