Maybe....
No. Its because in some parts of east asia every one is like a year older. They count their age in a different way than we do. The first year of a child is counted as 1, not 0 and however many months. So like when a baby is just born, he is 1. And so here if someone is 5, a kid that has lived the same amount of years as he did would be 6. Its the best I can explain it.