diff --git a/src/Nibbler.cpp b/src/Nibbler.cpp
index 302207608..685ed8872 100644
--- a/src/Nibbler.cpp
+++ b/src/Nibbler.cpp
@@ -632,75 +632,6 @@ bool Nibbler::getPartialUUID (std::string& result)
   return false;
 }
 
-////////////////////////////////////////////////////////////////////////////////
-// 19980119T070000Z =  YYYYMMDDThhmmssZ
-bool Nibbler::getDateISO (time_t& t)
-{
-  auto i = _cursor;
-
-  if (i < _length &&
-      _length - i >= 16)
-  {
-    if (Lexer::isDigit ((*_input)[i + 0]) &&
-        Lexer::isDigit ((*_input)[i + 1]) &&
-        Lexer::isDigit ((*_input)[i + 2]) &&
-        Lexer::isDigit ((*_input)[i + 3]) &&
-        Lexer::isDigit ((*_input)[i + 4]) &&
-        Lexer::isDigit ((*_input)[i + 5]) &&
-        Lexer::isDigit ((*_input)[i + 6]) &&
-        Lexer::isDigit ((*_input)[i + 7]) &&
-        (*_input)[i + 8] == 'T' &&
-        Lexer::isDigit ((*_input)[i + 9]) &&
-        Lexer::isDigit ((*_input)[i + 10]) &&
-        Lexer::isDigit ((*_input)[i + 11]) &&
-        Lexer::isDigit ((*_input)[i + 12]) &&
-        Lexer::isDigit ((*_input)[i + 13]) &&
-        Lexer::isDigit ((*_input)[i + 14]) &&
-        (*_input)[i + 15] == 'Z')
-    {
-      _cursor += 16;
-
-      int year   = ((*_input)[i + 0] - '0') * 1000
-                 + ((*_input)[i + 1] - '0') *  100
-                 + ((*_input)[i + 2] - '0') *   10
-                 + ((*_input)[i + 3] - '0');
-
-      int month  = ((*_input)[i + 4] - '0') * 10
-                 + ((*_input)[i + 5] - '0');
-
-      int day    = ((*_input)[i + 6] - '0') * 10
-                 + ((*_input)[i + 7] - '0');
-
-      int hour   = ((*_input)[i + 9] - '0') * 10
-                 + ((*_input)[i + 10] - '0');
-
-      int minute = ((*_input)[i + 11] - '0') * 10
-                 + ((*_input)[i + 12] - '0');
-
-      int second = ((*_input)[i + 13] - '0') * 10
-                 + ((*_input)[i + 14] - '0');
-
-      // Convert to epoch.
-      struct tm tms {};
-      tms.tm_isdst  = -1;   // Requests that mktime determine summer time effect.
-      tms.tm_mon    = month - 1;
-      tms.tm_mday   = day;
-      tms.tm_year   = year - 1900;
-      tms.tm_hour   = hour;
-      tms.tm_min    = minute;
-      tms.tm_sec    = second;
-#ifdef HAVE_TM_GMTOFF
-      tms.tm_gmtoff = 0;
-#endif
-
-      t = timegm (&tms);
-      return true;
-    }
-  }
-
-  return false;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // Parse the longest integer using the next 'limit' characters of 'result'
 // following position 'i' (when strict is true, the number of digits must be
diff --git a/src/Nibbler.h b/src/Nibbler.h
index 0aad538be..c789167ac 100644
--- a/src/Nibbler.h
+++ b/src/Nibbler.h
@@ -71,7 +71,6 @@ public:
 #endif
   bool getUUID (std::string&);
   bool getPartialUUID (std::string&);
-  bool getDateISO (time_t&);
   bool parseDigits(std::string::size_type&, int&, unsigned int, bool strict = true);
   bool getOneOf (const std::vector <std::string>&, std::string&);
   bool getName (std::string&);
diff --git a/test/nibbler.t.cpp b/test/nibbler.t.cpp
index 1cb26c7c3..3c7e819d9 100644
--- a/test/nibbler.t.cpp
+++ b/test/nibbler.t.cpp
@@ -36,9 +36,9 @@ Context context;
 int main (int, char**)
 {
 #ifdef NIBBLER_FEATURE_REGEX
-  UnitTest t (346);
+  UnitTest t (339);
 #else
-  UnitTest t (322);
+  UnitTest t (315);
 #endif
 
   // Ensure environment has no influence.
@@ -51,8 +51,6 @@ int main (int, char**)
     std::string s;
     int i;
     double d;
-    time_t ti;
-
     std::vector <std::string> options;
 
     // Make sure the nibbler behaves itself with trivial input.
@@ -72,7 +70,6 @@ int main (int, char**)
     t.notok (n.getUnsignedInt (i),       "trivial: getUnsignedInt");
     t.notok (n.getUntilEOL (s),          "trivial: getUntilEOL");
     t.notok (n.getUntilEOS (s),          "trivial: getUntilEOS");
-    t.notok (n.getDateISO (ti),          "trivial: getDateISO");
     t.notok (n.getOneOf (options, s),    "trivial: getOneOf");
     t.ok    (n.depleted (),              "trivial: depleted");
 
@@ -499,18 +496,6 @@ int main (int, char**)
     t.is (s, "a0b1c2d3",                             "partial uuid [8] -> correct");
     t.ok (n.depleted (),                             "not depleted");
 
-    // bool getDateISO (time_t&);
-    t.diag ("Nibbler::getDateISO");
-    n = Nibbler ("19980119T070000Z");
-    t.ok    (n.getDateISO (ti),       "'19980119T070000Z': getDateISO ()  -> true");
-    t.is    (ti, 885193200,           "'19980119T070000Z': getDateISO ()  -> 885193200");
-    t.ok    (n.depleted (),           "depleted");
-
-    n = Nibbler ("20090213T233130Z");
-    t.ok    (n.getDateISO (ti),       "'20090213T233130Z': getDateISO ()  -> true");
-    t.is    (ti, 1234567890,          "'20090213T233130Z': getDateISO ()  -> 1234567890");
-    t.ok    (n.depleted (),           "depleted");
-
     // bool getOneOf (const std::vector <std::string>&, std::string&);
     t.diag ("Nibbler::getOneOf");
     options = {"one", "two", "three"};