The word(s) "when" appears 916 time(s) in 828 verse(s) in Quran in Mohsin Khan translation.

(41) And from wheresoever you start forth (for prayers), turn your face in the direction of Al-Masjid-Al-Haram (at Makkah), and wheresoever you are, turn your faces towards it (when you pray) so that men may have no argument against you except those of them that are wrong-doers, so fear them not, but fear Me! - And so that I may complete My Blessings on you and that you may be guided.

(42) Who, when afflicted with calamity, say: "Truly! To Allah we belong and truly, to Him we shall return."

(43) And of mankind are some who take (for worship) others besides Allah as rivals (to Allah). They love them as they love Allah. But those who believe, love Allah more (than anything else). If only, those who do wrong could see, when they will see the torment, that all power belongs to Allah and that Allah is Severe in punishment.

(44) when those who were followed, disown (declare themselves innocent of) those who followed (them), and they see the torment, then all their relations will be cut off from them.

(45) when it is said to them: "Follow what Allah has sent down." They say: "Nay! We shall follow what we found our fathers following." (Would they do that!) even though their fathers did not understand anything nor were they guided?

(46) It is not Al-Birr (piety, righteousness, and each and every act of obedience to Allah, etc.) that you turn your faces towards east and (or) west (in prayers); but Al-Birr is (the quality of) the one who believes in Allah, the Last Day, the Angels, the Book, the Prophets and gives his wealth, in spite of love for it, to the kinsfolk, to the orphans, and to Al-Masakin (the poor), and to the wayfarer, and to those who ask, and to set slaves free, performs As-Salat (Iqamat-as-Salat ), and gives the Zakat, and who fulfil their covenant when they make it, and who are patient in extreme poverty and ailment (disease) and at the time of fighting (during the battles). Such are the people of the truth and they are Al-Muttaqun (the pious - See V.2:2).

(47) It is prescribed for you, when death approaches any of you, if he leaves wealth, that he makes a bequest to parents and next of kin, according to reasonable manners. (This is) a duty upon Al-Muttaqun (the pious - See V.2: 2).

(48) And when My slaves ask you (O Muhammad صلى الله عليه وسلم) concerning Me, then (answer them), I am indeed near (to them by My Knowledge). I respond to the invocations of the supplicant when he calls on Me (without any mediator or intercessor). So let them obey Me and believe in Me, so that they may be led aright.

(49) There is no sin on you if you seek the Bounty of your Lord (during pilgrimage by trading). Then when you leave 'Arafat , remember Allah (by glorifying His Praises, i.e. prayers and invocations) at the Mash'ar-il-Haram . And remember Him (by invoking Allah for all good.) as He has guided you, and verily, you were, before, of those who were astray.

(50) Then depart from the place whence all the people depart and ask Allah for His Forgiveness. Truly, Allah is Oft-Forgiving, Most-Merciful.