Lidl weekly coupons expiry confusion

I got a coupon that says expiring tomorrow that I would like to use. Normally I'd expect for it to mean it is valid tomorrow(Friday) as well but you can never tell. Im hoping it doesn't mean it expires as soon as Friday hits. Then again you would expect it to say expiring today if it were to expire midnight tonight I guess. Either way I've been burnt before so just looking for some assurance haha.

Any regular lidl plus shoppers that can alleviate my fear?