diff --git a/absl/time/internal/cctz/src/time_zone_format.cc b/absl/time/internal/cctz/src/time_zone_format.cc
index d8cb047..0c5f182 100644
--- a/absl/time/internal/cctz/src/time_zone_format.cc
+++ b/absl/time/internal/cctz/src/time_zone_format.cc
@@ -12,6 +12,8 @@
 //   See the License for the specific language governing permissions and
 //   limitations under the License.
 
+#define HAS_STRPTIME 0
+
 #if !defined(HAS_STRPTIME)
 #if !defined(_MSC_VER) && !defined(__MINGW32__)
 #define HAS_STRPTIME 1  // assume everyone has strptime() except windows
@@ -58,7 +60,7 @@
 
 #if !HAS_STRPTIME
 // Build a strptime() using C++11's std::get_time().
-char* strptime(const char* s, const char* fmt, std::tm* tm) {
+char* strptime_local(const char* s, const char* fmt, std::tm* tm) {
   std::istringstream input(s);
   input >> std::get_time(tm, fmt);
   if (input.fail()) return nullptr;
@@ -648,7 +650,7 @@
 // Parses a string into a std::tm using strptime(3).
 const char* ParseTM(const char* dp, const char* fmt, std::tm* tm) {
   if (dp != nullptr) {
-    dp = strptime(dp, fmt, tm);
+    dp = strptime_local(dp, fmt, tm);
   }
   return dp;
 }