If you’re a Christian and you can’t pinpoint the date and time of your conversion, don’t despair and don’t let your conscience bother you. Listen to these great paragraphs found in John Flavel’s The Mystery of Providence. I added the words in the brackets for clarification.
“Conversion, as to the subjects of it, may be considered two ways; either as it is more clearly wrought in persons of riper years, who in their youthful days were more profane and vile; or upon persons in their tender years, into whose hearts grace was more imperceptibly and indiscernibly instilled by God’s blessing upon pious education” (Christian teaching).
“In the former sort, the distinct acts of the Spirit, illuminating, convincing, humbling, drawing them to Christ and sealing them are more evident and discernible. In the latter, these are more obscure and confused (mixed together). They can remember that God gave them an esteem and liking of godly persons, care of duty and conscience of sin; but as to the time, place, instruments, and manner of the work, they can give but a slender account of them. However, if the work is savingly wrought in them, there is no reason they should be troubled because the circumstances of it are not so evident to them as they are to others.”
“Let the substance and reality of the work appear and there is no reason to afflict yourselves because of the lack of evidence of such circumstances” (p. 61).