diff --git a/src/sync-full-state.cc b/src/sync-full-state.cc
index eb9ca4c..7000606 100644
--- a/src/sync-full-state.cc
+++ b/src/sync-full-state.cc
@@ -45,10 +45,10 @@
 {
 }
 
-ndn::time::Duration
+ndn::time::system_clock::Duration
 FullState::getTimeFromLastUpdate () const
 {
-  return ndn::time::now() - m_lastUpdated;
+  return ndn::time::system_clock::now() - m_lastUpdated;
 }
 
 DigestConstPtr
@@ -81,7 +81,7 @@
 boost::tuple<bool/*inserted*/, bool/*updated*/, SeqNo/*oldSeqNo*/>
 FullState::update (NameInfoConstPtr info, const SeqNo &seq)
 {
-  m_lastUpdated = ndn::time::now();
+  m_lastUpdated = ndn::time::system_clock::now();
 
 
   m_digest.reset ();
@@ -109,7 +109,7 @@
 bool
 FullState::remove (NameInfoConstPtr info)
 {
-  m_lastUpdated = ndn::time::now();
+  m_lastUpdated = ndn::time::system_clock::now();
 
   m_digest.reset ();
 
diff --git a/src/sync-full-state.h b/src/sync-full-state.h
index 28e0078..028c41e 100644
--- a/src/sync-full-state.h
+++ b/src/sync-full-state.h
@@ -51,7 +51,7 @@
    *
    * This value can be used to randomize reconciliation waiting time in SyncApp
    */
-  ndn::time::Duration
+  ndn::time::system_clock::Duration
   getTimeFromLastUpdate () const;
 
   /**
@@ -70,7 +70,7 @@
   remove (NameInfoConstPtr info);
   
 private:
-  ndn::time::Point m_lastUpdated; ///< @brief Time when state was updated last time
+  ndn::time::system_clock::TimePoint m_lastUpdated; ///< @brief Time when state was updated last time
   DigestPtr m_digest;
 };
 
diff --git a/src/sync-interest-container.h b/src/sync-interest-container.h
index 742f053..f674d05 100644
--- a/src/sync-interest-container.h
+++ b/src/sync-interest-container.h
@@ -47,14 +47,14 @@
   Interest (DigestConstPtr digest, const std::string &name, bool unknown=false)
   : m_digest (digest)
   , m_name (name)
-  , m_time (ndn::time::now())
+  , m_time (ndn::time::system_clock::now())
   , m_unknown (unknown)
   {
   }
   
   DigestConstPtr   m_digest;
   std::string      m_name;
-  ndn::time::Point m_time;
+  ndn::time::system_clock::TimePoint m_time;
   bool             m_unknown;
 };
 
@@ -87,7 +87,7 @@
     
     mi::ordered_non_unique<
       mi::tag<timed>,
-      BOOST_MULTI_INDEX_MEMBER(Interest, ndn::time::Point, m_time)
+      BOOST_MULTI_INDEX_MEMBER(Interest, ndn::time::system_clock::TimePoint, m_time)
       >
     >
   >
diff --git a/src/sync-interest-table.cc b/src/sync-interest-table.cc
index a378950..415b641 100644
--- a/src/sync-interest-table.cc
+++ b/src/sync-interest-table.cc
@@ -29,7 +29,7 @@
 namespace Sync
 {
 
-SyncInterestTable::SyncInterestTable (boost::asio::io_service& io, ndn::time::Duration lifetime)
+SyncInterestTable::SyncInterestTable (boost::asio::io_service& io, ndn::time::system_clock::Duration lifetime)
   : m_entryLifetime (lifetime)
   , m_scheduler(io)
 {
@@ -103,7 +103,7 @@
 void SyncInterestTable::expireInterests ()
 { 
   uint32_t count = 0;
-  ndn::time::Point expireTime = ndn::time::now() - m_entryLifetime;
+  ndn::time::system_clock::TimePoint expireTime = ndn::time::system_clock::now() - m_entryLifetime;
   
   while (m_table.size () > 0)
     {
diff --git a/src/sync-interest-table.h b/src/sync-interest-table.h
index 9b7c46b..4810c41 100644
--- a/src/sync-interest-table.h
+++ b/src/sync-interest-table.h
@@ -42,7 +42,7 @@
 class SyncInterestTable
 {
 public:
-  SyncInterestTable (boost::asio::io_service& io, ndn::time::Duration lifetime);
+  SyncInterestTable (boost::asio::io_service& io, ndn::time::system_clock::Duration lifetime);
   ~SyncInterestTable ();
 
   /**
@@ -81,7 +81,7 @@
   expireInterests ();
 
 private:
-  ndn::time::Duration m_entryLifetime;
+  ndn::time::system_clock::Duration m_entryLifetime;
   InterestContainer m_table;
 
   ndn::Scheduler m_scheduler;
diff --git a/src/sync-logic.cc b/src/sync-logic.cc
index 5d20143..617830b 100644
--- a/src/sync-logic.cc
+++ b/src/sync-logic.cc
@@ -49,7 +49,7 @@
   (time::seconds(sec) + time::milliseconds(GET_RANDOM (m_reexpressionJitter)))
 
 #define TIME_MILLISECONDS_WITH_JITTER(ms) \
-  (time::seconds(ms) + time::milliseconds(GET_RANDOM (m_reexpressionJitter)))
+  (time::milliseconds(ms) + time::milliseconds(GET_RANDOM (m_reexpressionJitter)))
 
 namespace Sync {
 
@@ -57,6 +57,9 @@
 
 int SyncLogic::m_instanceCounter = 0;
 
+const int SyncLogic::m_syncResponseFreshness = 1000; // MUST BE dividable by 1000!!!
+const int SyncLogic::m_syncInterestReexpress = 4; // seconds
+
 SyncLogic::SyncLogic (const Name& syncPrefix,
                       const IdentityCertificate& myCertificate,
                       shared_ptr<Validator> validator, 
@@ -430,7 +433,7 @@
       // satisfyPendingSyncInterests (diffLog); // if there are interests in PIT, there is a point to satisfy them using new state
   
       // if state has changed, then it is safe to express a new interest
-      time::Duration after = time::milliseconds(GET_RANDOM (m_reexpressionJitter));
+      time::system_clock::Duration after = time::milliseconds(GET_RANDOM (m_reexpressionJitter));
       // cout << "------------ reexpress interest after: " << after << endl;
       EventId eventId = m_scheduler.scheduleEvent (after,
                                                    bind (&SyncLogic::sendSyncInterest, this));
@@ -602,7 +605,7 @@
   Name interestName = m_syncPrefix;
   interestName.append("recovery").append(os.str());
 
-  time::Duration nextRetransmission = time::milliseconds (m_recoveryRetransmissionInterval + GET_RANDOM (m_reexpressionJitter));
+  time::system_clock::Duration nextRetransmission = time::milliseconds (m_recoveryRetransmissionInterval + GET_RANDOM (m_reexpressionJitter));
 
   m_recoveryRetransmissionInterval <<= 1;
     
@@ -640,7 +643,7 @@
 
   Data syncData(name);
   syncData.setContent(reinterpret_cast<const uint8_t*>(wireData), size);
-  syncData.setFreshnessPeriod(m_syncResponseFreshness);
+  syncData.setFreshnessPeriod(time::milliseconds(m_syncResponseFreshness));
   
   m_keyChain.sign(syncData, m_myCertificate.getName());
   
@@ -658,7 +661,7 @@
     {
       _LOG_DEBUG_ID ("Satisfied our own Interest. Re-expressing (hopefully with a new digest)");
       
-      time::Duration after = time::milliseconds(GET_RANDOM (m_reexpressionJitter));
+      time::system_clock::Duration after = time::milliseconds(GET_RANDOM (m_reexpressionJitter));
       // cout << "------------ reexpress interest after: " << after << endl;
       EventId eventId = m_scheduler.scheduleEvent (after,
                                                    bind (&SyncLogic::sendSyncInterest, this));
diff --git a/src/sync-logic.h b/src/sync-logic.h
index ec8fc29..98ab0aa 100644
--- a/src/sync-logic.h
+++ b/src/sync-logic.h
@@ -193,8 +193,8 @@
   boost::variate_generator<boost::mt19937&, boost::uniform_int<> > m_reexpressionJitter;
 
   static const int m_unknownDigestStoreTime = 10; // seconds
-  static const int m_syncResponseFreshness = 1000; // MUST BE dividable by 1000!!!
-  static const int m_syncInterestReexpress = 4; // seconds
+  static const int m_syncResponseFreshness; // MUST BE dividable by 1000!!!
+  static const int m_syncInterestReexpress; // seconds
 
   static const int m_defaultRecoveryRetransmitInterval = 200; // milliseconds
   uint32_t m_recoveryRetransmissionInterval; // milliseconds
diff --git a/src/sync-socket.cc b/src/sync-socket.cc
index ca015de..9c31f79 100644
--- a/src/sync-socket.cc
+++ b/src/sync-socket.cc
@@ -92,7 +92,7 @@
 {
   shared_ptr<Data> data = make_shared<Data>();
   data->setContent(reinterpret_cast<const uint8_t*>(buf), len);
-  data->setFreshnessPeriod(1000*freshness);
+  data->setFreshnessPeriod(time::milliseconds(1000*freshness));
 
   m_ioService->post(bind(&SyncSocket::publishDataInternal, this, 
                          data, isCert));
diff --git a/src/sync-validator.cc b/src/sync-validator.cc
index 2d86dbe..e1d40d8 100644
--- a/src/sync-validator.cc
+++ b/src/sync-validator.cc
@@ -130,7 +130,7 @@
               Name interestName = m_prefix;
               interestName.append("CHRONOS-INTRO-CERT").append(keyLocatorName.wireEncode());
               Interest interest(interestName);
-              interest.setInterestLifetime(500);
+              interest.setInterestLifetime(time::milliseconds(500));
 
               OnDataValidated onKeyValidated = bind(&SyncValidator::onCertificateValidated, this, 
                                                     _1, data.shared_from_this(), onValidated, onValidationFailed);