Most of these intervals are given in kilometers, but some might be expressed as a measure of time, such as months or years.
Ndị mmadụ dị iche iche kwuru na otu okwesịrị ahụ dịịrị ọnwa dị iche iche, a na-ekwukwa na omume ụfọdụ sitere na okwute ụfọdụ mgbe eyiri ya n'ime ọnwa ma ọ bụ n'oge oge ndị a kwuru na ha ga-eyi.