diff --git a/crypto/asn1/a_time.c b/crypto/asn1/a_time.c
index bcf313536e..9bcddad4a2 100644
--- a/crypto/asn1/a_time.c
+++ b/crypto/asn1/a_time.c
@@ -492,9 +492,9 @@ int ASN1_TIME_print_ex(BIO *bp, const ASN1_TIME *tm, unsigned long flags)
 int ossl_asn1_time_print_ex(BIO *bp, const ASN1_TIME *tm, unsigned long flags)
 {
     char *v;
-    int gmt = 0, l;
+    int l;
     struct tm stm;
-    const char upper_z = 0x5A, period = 0x2E;
+    const char period = 0x2E;
 
     /* ossl_asn1_time_to_tm will check the time type */
     if (!ossl_asn1_time_to_tm(&stm, tm))
@@ -502,8 +502,6 @@ int ossl_asn1_time_print_ex(BIO *bp, const ASN1_TIME *tm, unsigned long flags)
 
     l = tm->length;
     v = (char *)tm->data;
-    if (v[l - 1] == upper_z)
-        gmt = 1;
 
     if (tm->type == V_ASN1_GENERALIZEDTIME) {
         char *f = NULL;
@@ -514,39 +512,36 @@ int ossl_asn1_time_print_ex(BIO *bp, const ASN1_TIME *tm, unsigned long flags)
          * 'fraction point' in a GeneralizedTime string.
          */
         if (tm->length > 15 && v[14] == period) {
-            f = &v[14];
-            f_len = 1;
-            while (14 + f_len < l && ossl_ascii_isdigit(f[f_len]))
+            /* exclude the . itself */
+            f = &v[15];
+            f_len = 0;
+            while (15 + f_len < l && ossl_ascii_isdigit(f[f_len]))
                 ++f_len;
         }
 
-        if ((flags & ASN1_DTFLGS_TYPE_MASK) == ASN1_DTFLGS_ISO8601) {
-            return BIO_printf(bp, "%4d-%02d-%02d %02d:%02d:%02d%.*s%s",
+        if (f_len > 0) {
+            if ((flags & ASN1_DTFLGS_TYPE_MASK) == ASN1_DTFLGS_ISO8601) {
+                return BIO_printf(bp, "%4d-%02d-%02d %02d:%02d:%02d.%.*sZ",
+                                  stm.tm_year + 1900, stm.tm_mon + 1,
+                                  stm.tm_mday, stm.tm_hour,
+                                  stm.tm_min, stm.tm_sec, f_len, f) > 0;
+            } else {
+                return BIO_printf(bp, "%s %2d %02d:%02d:%02d.%.*s %d GMT",
+                                  _asn1_mon[stm.tm_mon], stm.tm_mday, stm.tm_hour,
+                                  stm.tm_min, stm.tm_sec, f_len, f,
+                                  stm.tm_year + 1900) > 0;
+            }
+        }
+    }
+    if ((flags & ASN1_DTFLGS_TYPE_MASK) == ASN1_DTFLGS_ISO8601) {
+        return BIO_printf(bp, "%4d-%02d-%02d %02d:%02d:%02dZ",
                           stm.tm_year + 1900, stm.tm_mon + 1,
                           stm.tm_mday, stm.tm_hour,
-                          stm.tm_min, stm.tm_sec, f_len, f,
-                          (gmt ? "Z" : "")) > 0;
-        }
-        else {
-            return BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
-                          _asn1_mon[stm.tm_mon], stm.tm_mday, stm.tm_hour,
-                          stm.tm_min, stm.tm_sec, f_len, f, stm.tm_year + 1900,
-                          (gmt ? " GMT" : "")) > 0;
-        }
+                          stm.tm_min, stm.tm_sec) > 0;
     } else {
-        if ((flags & ASN1_DTFLGS_TYPE_MASK) == ASN1_DTFLGS_ISO8601) {
-            return BIO_printf(bp, "%4d-%02d-%02d %02d:%02d:%02d%s",
-                          stm.tm_year + 1900, stm.tm_mon + 1,
-                          stm.tm_mday, stm.tm_hour,
-                          stm.tm_min, stm.tm_sec,
-                          (gmt ? "Z" : "")) > 0;
-        }
-        else {
-            return BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s",
+        return BIO_printf(bp, "%s %2d %02d:%02d:%02d %d GMT",
                           _asn1_mon[stm.tm_mon], stm.tm_mday, stm.tm_hour,
-                          stm.tm_min, stm.tm_sec, stm.tm_year + 1900,
-                          (gmt ? " GMT" : "")) > 0;
-        }
+                          stm.tm_min, stm.tm_sec, stm.tm_year + 1900) > 0;
     }
 }
 
diff --git a/doc/man3/ASN1_TIME_set.pod b/doc/man3/ASN1_TIME_set.pod
index 66d9fefe1a..1efe305e00 100644
--- a/doc/man3/ASN1_TIME_set.pod
+++ b/doc/man3/ASN1_TIME_set.pod
@@ -102,8 +102,8 @@ functions check the syntax of the time structure I<s>.
 
 The ASN1_TIME_print(), ASN1_UTCTIME_print() and ASN1_GENERALIZEDTIME_print()
 functions print the time structure I<s> to BIO I<b> in human readable
-format. It will be of the format MMM DD HH:MM:SS YYYY [GMT], for example
-"Feb  3 00:55:52 2015 GMT", which does not include a newline.
+format. It will be of the format MMM DD HH:MM:SS[.s*] YYYY GMT, for example
+"Feb E<32>3 00:55:52 2015 GMT", which does not include a newline.
 If the time structure has invalid format it prints out "Bad time value" and
 returns an error. The output for generalized time may include a fractional part
 following the second.
@@ -179,6 +179,10 @@ starting with B<ASN1_UTCTIME> and B<ASN1_GENERALIZEDTIME> act only on that
 specific time format. The functions starting with B<ASN1_TIME> will operate on
 either format.
 
+Users familiar with RFC822 should note that when specifying the flag
+B<ASN1_DTFLGS_RFC822> the year will be formatted as documented above,
+i.e., using 4 digits, not 2 as specified in RFC822.
+
 =head1 BUGS
 
 ASN1_TIME_print(), ASN1_UTCTIME_print() and ASN1_GENERALIZEDTIME_print() do