Sye Ten Bruggencate's Testimony
Sye Ten Bruggencate is one of my favorite people that I have met online.He is best known for being a presuppositional apologist &
his website http://proofthatGodexists.org & now there is a Spanish translation.
He is also known for a DVD & Study guide course "HOW TO ANSWER THE FOOL: A PRESUPPOSITIONAL DEFENSE OF THE FAITH" available on Vimeo Here and on One Million Tracts Here.
Sye's testimony might seem unusual, although I have heard of others who did not know a specific time they first believed since for them it was more gradual.
Although I point to a certain time for myself, perhaps I could say that my understanding of my faith and acknowledgment of sin was a gradual process as well. I think the acknowledgment of sin is a key issue. You can see spiritual growth over time in all true believers.