X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=doc%2Fman1%2Fca.pod;h=ab8ce7211fcf0a41cdc4f699fcdc1f3d339519fc;hp=4a5970892c5f7a93446976dc1b38811e130cb891;hb=909873bda30c1d568adef767b35558ced5c86d81;hpb=4e9b720e90ec154c9708139e96ec0ff8e2796c82

diff --git a/doc/man1/ca.pod b/doc/man1/ca.pod
index 4a5970892c..ab8ce7211f 100644
--- a/doc/man1/ca.pod
+++ b/doc/man1/ca.pod
@@ -164,12 +164,16 @@ Don't output the text form of a certificate to the output file.
 =item B<-startdate date>
 
 This allows the start date to be explicitly set. The format of the
-date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure).
+date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure), or
+YYYYMMDDHHMMSSZ (the same as an ASN1 GeneralizedTime structure). In
+both formats, seconds SS and timzone Z must be present.
 
 =item B<-enddate date>
 
 This allows the expiry date to be explicitly set. The format of the
-date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure).
+date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure), or
+YYYYMMDDHHMMSSZ (the same as an ASN1 GeneralizedTime structure). In
+both formats, seconds SS and timzone Z must be present.
 
 =item B<-days arg>
 
@@ -716,6 +720,14 @@ For example if the CA certificate has:
 
 then even if a certificate is issued with CA:TRUE it will not be valid.
 
+=head1 HISTORY
+
+Since OpenSSL 1.1.1, the program follows RFC5280. Specifically,
+certificate validity period (specified by any of B<-startdate>,
+B<-enddate> and B<-days>) will be encoded as UTCTime if the dates are
+earlier than year 2049 (included), and as GeneralizedTime if the dates
+are in year 2050 or later.
+
 =head1 SEE ALSO
 
 L<req(1)>, L<spkac(1)>, L<x509(1)>, L<CA.pl(1)>,