diff --git a/Source/driver/Castro_io.cpp b/Source/driver/Castro_io.cpp
index b002bf210e..7289d09df1 100644
--- a/Source/driver/Castro_io.cpp
+++ b/Source/driver/Castro_io.cpp
@@ -574,11 +574,11 @@ Castro::writeJobInfo (const std::string& dir, const Real io_time)
   jobInfoFile << " Plotfile Information\n";
   jobInfoFile << PrettyLine;
 
-  time_t now = time(nullptr);
-
-  // Convert now to tm struct for local timezone
-  tm* localtm = localtime(&now);
-  jobInfoFile   << "output date / time: " << asctime(localtm);
+  const std::time_t now = time(nullptr);
+  char buf[64];
+  if (strftime(buf, sizeof buf, "%c\n", std::localtime(&now))) {
+      jobInfoFile << "output date / time: " << buf << "\n";
+  }
 
   char currentDir[FILENAME_MAX];
   if (getcwd(currentDir, FILENAME_MAX) != nullptr) {