The site is www.cbp.gov/I94. Whether the paper or online version, the I-94 will show your “entry date” and the “expiration date” for that particular entry type.
Haddii warqadda ama version online, ka-I 94 tusi doonaa “taariikhda entry” iyo “taariikhda dhicitaanka” waayo, gaar ahaan nooca lagu galo in.