diff --git a/core/include/general/common.h b/core/include/general/common.h
index 7029922..e7935fe 100644
--- a/core/include/general/common.h
+++ b/core/include/general/common.h
@@ -32,6 +32,7 @@
 #include <sstream>
 #include <iomanip>
 #include <sys/types.h>
+#include <chrono>
 
 namespace std
 {
@@ -118,6 +119,14 @@ struct IsPrintable<T, decltype(static_cast<void>(declval<ostream &>() << declval
 {
 };
 
+template <typename Rep, typename Period>
+std::ostream&
+operator<<(std::ostream& os, const std::chrono::duration<Rep, Period>& d)
+{
+    os << d.count();
+    return os;
+}
+
 template <typename CanPrint>
 ostream &
 operator<<(ostream &os, const decltype(declval<CanPrint>().print(declval<ostream &>()), declval<CanPrint>()) &obj)
diff --git a/core/include/general/debug.h b/core/include/general/debug.h
index 445807d..d597e40 100644
--- a/core/include/general/debug.h
+++ b/core/include/general/debug.h
@@ -36,13 +36,6 @@ class I_SignalHandler;
 namespace Config { enum class Errors; }
 std::ostream & operator<<(std::ostream &, const Config::Errors &);
 
-template <typename Rep, typename Period>
-std::ostream& operator<<(std::ostream& os, const std::chrono::duration<Rep, Period>& d)
-{
-    os << d.count();
-    return os;
-}
-
 enum class AlertTeam { CORE, WAAP, SDWAN, IOT };
 
 class AlertInfo