[root@hj-elk cert]# openssl x509 -in 4398268__huajingyun.com.pem -noout -dates
notBefore=Aug 24 00:00:00 2020 GMT
notAfter=Aug 25 12:00:00 2021 GMT
[root@hj-elk cert]# openssl x509 -in 4398268__huajingyun.com.pem -noout -enddate
notAfter=Aug 25 12:00:00 2021 GMT
[root@hj-elk cert]#