hi ejafus, welcome to the forum. assuming your data is from A1:A6, try copying this into a formula bar:
=TEXT(INDEX(A1:A6,MIN(IF(ISTEXT(B1:B6),ROW(B1:B6)))),"hh:mm")&" "&TEXT(INDEX(A1:A6,MAX(IF(ISTEXT(B1:B6),ROW(B1:B6)))),"hh:mm")
press CTRL + SHIFT + ENTER to confirm