A Time to Die by Nadine Brandes

Book 1 of Out of Time Trilogy

Summary:

How would you live if you knew the day you'd die?

Three hundred sixty-four days, seven hours, and sixteen--no, fifteen--seconds left to live. Like everyone else on the east side of the Wall, Parvin Blackwater has a clock counting down the days until her death. At only seventeen, she has one year left. When the authorities find out she has been illegally sharing a clock with her twin brother, she is cast through the Wall--her people's death sentence. What she finds on the other side about the world, about God, and about herself changes Parvin forever and might just save her people. If she can get the word to them before her time runs out.  

Opening Lines:

There was once a time when only God knew the day you'd die. 

At least that's what they tell me. I wasn't alive then--back when life bore adventure and death held surprise. I guess God decided to share the coveted knowledge. Either that, or we stole it from Him. Personally, I think He just gave the world what it thought it wanted: control. 

My thin rectangular Clock sits on the carved shelf across the room, clicking its red digital numbers--red like blood. Today marks the first day of my last year alive.