Dark By Noon by Alan Leonard

3.10

Rez lost his wife sometime in the past, now he is a man abandoned by society, trying to survive, and provide for his daughter. He possesses a gift: the perfect photographic memory, but having perfect recall isn't all it's cracked up to be. He finds himself involved with dangerous people from his past who persuade him into testing their stolen time machine "Titus" that has the ability to send someone hours into the future. When he leaps forward in time and witnesses a nuclear explosion, he returns to his own time and has only eight hours to discover the cause and save the city from destruction.