diff --git a/tests/test-encode-decode-ContentObject.cpp b/tests/test-encode-decode-ContentObject.cpp
index 665d097..0ed1c99 100644
--- a/tests/test-encode-decode-ContentObject.cpp
+++ b/tests/test-encode-decode-ContentObject.cpp
@@ -6,15 +6,19 @@
 #include <cstdlib>
 #include <sstream>
 #include <iostream>
+#if 0
 #include <boost/date_time/posix_time/posix_time_types.hpp>
 #include <boost/date_time/posix_time/time_serialize.hpp>
 #include <boost/date_time/gregorian/gregorian.hpp>
+#endif
 #include <ndn-cpp/ContentObject.hpp>
 
 using namespace std;
 using namespace ndn;
+#if 0
 using namespace boost::posix_time;
 using namespace boost::gregorian;
+#endif
 
 unsigned char ContentObject1[] = {
 0x04, 0x82, // ContentObject
@@ -62,7 +66,9 @@
 1
 };
 
+#if 0
 const ptime UNIX_EPOCH_TIME = ptime (date (1970, Jan, 1));
+#endif
 
 int main(int argc, char** argv)
 {
@@ -70,9 +76,11 @@
     ContentObject contentObject;
     contentObject.decode(ContentObject1, sizeof(ContentObject1));
     cout << "ContentObject name " << contentObject.getName().to_uri() << endl;
+#if 0
     ptime timestamp = UNIX_EPOCH_TIME + milliseconds(contentObject.getSignedInfo().getTimestampMilliseconds());
     cout << "ContentObject timestamp " << timestamp.date().year() << "/" << timestamp.date().month() << "/" << timestamp.date().day() 
          << " " << timestamp.time_of_day().hours() << ":" << timestamp.time_of_day().minutes() << ":" << timestamp.time_of_day().seconds()  << endl;
+#endif
     
     ptr_lib::shared_ptr<vector<unsigned char> > encoding = contentObject.encode();
     cout << "ContentObject encoding length " << encoding->size() << " vs. sizeof(ContentObject1) " << sizeof(ContentObject1) << endl;
@@ -80,8 +88,10 @@
     ContentObject reDecodedContentObject;
     reDecodedContentObject.decode(*encoding);
     cout << "Re-decoded ContentObject name " << reDecodedContentObject.getName().to_uri() << endl;
+#if 0
     timestamp = UNIX_EPOCH_TIME + milliseconds(reDecodedContentObject.getSignedInfo().getTimestampMilliseconds());
     cout << "Re-decoded ContentObject timestamp " << timestamp.date().year() << "/" << timestamp.date().month() << "/" << timestamp.date().day() << endl;
+#endif
   } catch (exception &e) {
     cout << "exception: " << e.what() << endl;
   }