In English, we might say I am traveling from the U.S. to China or I’ll be on vacation from May to June. To say the same thing in Chinese, use 从 (cóng, from) and 到 (dào, to).
从美国到中国
cóng Měiguó dào Zhōngguó
from the U.S. to China
从五月到六月
cóng Wǔyuè dào Liùyuè
from May to June
从九点到五点
cóng jiú diǎn dào wú diǎn
from 9 o’clock to 5 o’clock