How to get SSL certificate expiration date from command line

cd ~/.acme.sh/medio.click/
openssl x509 -noout -enddate -in medio.click.cer
notAfter=May 16 23:05:19 2021 GMT

For the rest of the certificate information:

openssl x509 -help
Usage: x509 [options]
Valid options are:

...
 -subject              Print subject DN
 -issuer               Print issuer DN
 -email                Print email address(es)
 -startdate            Set notBefore field
 -enddate              Set notAfter field
 -purpose              Print out certificate purposes
 -dates                Both Before and After dates
 -modulus              Print the RSA key modulus
 -pubkey               Output the public key
 -fingerprint          Print the certificate fingerprint
 -alias                Output certificate alias