diff --git a/src/crypto/asn1/a_utctm.cc b/src/crypto/asn1/a_utctm.cc
index 993dd5d21..14be46123 100644
--- a/src/crypto/asn1/a_utctm.cc
+++ b/src/crypto/asn1/a_utctm.cc
@@ -102,34 +102,3 @@ ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, int64_t posix_time,
   s->type = V_ASN1_UTCTIME;
   return s;
 }
-
-int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t) {
-  struct tm stm, ttm;
-  int day, sec;
-
-  if (!asn1_utctime_to_tm(&stm, s, /*allow_timezone_offset=*/1)) {
-    return -2;
-  }
-
-  if (!OPENSSL_posix_to_tm(t, &ttm)) {
-    return -2;
-  }
-
-  if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm)) {
-    return -2;
-  }
-
-  if (day > 0) {
-    return 1;
-  }
-  if (day < 0) {
-    return -1;
-  }
-  if (sec > 0) {
-    return 1;
-  }
-  if (sec < 0) {
-    return -1;
-  }
-  return 0;
-}
diff --git a/src/crypto/asn1/asn1_test.cc b/src/crypto/asn1/asn1_test.cc
index 870de3850..8508fc147 100644
--- a/src/crypto/asn1/asn1_test.cc
+++ b/src/crypto/asn1/asn1_test.cc
@@ -1169,7 +1169,7 @@ TEST(ASN1Test, UTCTimeZoneOffsets) {
   EXPECT_EQ(V_ASN1_UTCTIME, ASN1_STRING_type(s.get()));
   EXPECT_EQ("700101000000Z", ASN1StringToStringView(s.get()));
 
-  // UTCTIME_set_string should not allow a timezeone offset
+  // UTCTIME_set_string should not allow a timezone offset
   EXPECT_FALSE(ASN1_UTCTIME_set_string(s.get(), "700101000000-0400"));
 
   // Forcibly construct a utc time with a timezone offset.
@@ -1178,13 +1178,9 @@ TEST(ASN1Test, UTCTimeZoneOffsets) {
   EXPECT_EQ(V_ASN1_UTCTIME, ASN1_STRING_type(s.get()));
   EXPECT_EQ("700101000000-0400", ASN1StringToStringView(s.get()));
 
-  // check is expected to be valid with timezeone offsets
+  // check is expected to be valid with timezone offsets
   ASSERT_TRUE(ASN1_UTCTIME_check(s.get()));
 
-  // cmp_time_t allows timezeone offset, and we are expected to be 4 hours
-  // behind the epoch.
-  EXPECT_EQ(ASN1_UTCTIME_cmp_time_t(s.get(), (4 * 60 * 60 * -1)), 0);
-
   int64_t posix_time;
   EXPECT_FALSE(ASN1_TIME_to_posix(s.get(), &posix_time));
   ASSERT_TRUE(ASN1_TIME_to_posix_nonstandard(s.get(), &posix_time));
diff --git a/src/include/openssl/asn1.h b/src/include/openssl/asn1.h
index 57cdf6c06..4a1877ac4 100644
--- a/src/include/openssl/asn1.h
+++ b/src/include/openssl/asn1.h
@@ -1181,10 +1181,6 @@ OPENSSL_EXPORT ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s,
 // If |s| is NULL, this function validates |str| without copying it.
 OPENSSL_EXPORT int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str);
 
-// ASN1_UTCTIME_cmp_time_t compares |s| to |t|. It returns -1 if |s| < |t|, 0 if
-// they are equal, 1 if |s| > |t|, and -2 on error.
-OPENSSL_EXPORT int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t);
-
 // ASN1_GENERALIZEDTIME_new calls |ASN1_STRING_type_new| with
 // |V_ASN1_GENERALIZEDTIME|. The resulting object contains empty contents and
 // must be initialized to be a valid GeneralizedTime.