diff --git a/doc/3.03-macros.md b/doc/3.03-macros.md
index db9e74354..df595eb64 100644
--- a/doc/3.03-macros.md
+++ b/doc/3.03-macros.md
@@ -96,6 +96,8 @@ hosts or services:
   LASTHOSTSTATE          | The host's previous state. Can be one of `UNREACHABLE`, `UP` and `DOWN`.
   LASTHOSTSTATEID        | The host's previous state. Can be one of `0` (up), `1` (down) and `2` (unreachable).
   LASTHOSTSTATETYPE      | The host's previous state type. Can be one of `SOFT` and `HARD`.
+  LASTHOSTSTATECHANGE    | The last state change's timestamp.
+  HOSTDURATIONSEC        | The time since the last state change.
   HOSTLATENCY            | The host's check latency.
   HOSTEXECUTIONTIME      | The host's check execution time.
   HOSTOUTPUT             | The last check's output.
@@ -123,6 +125,7 @@ services:
   LASTSERVICESTATEID     | The service's previous state. Can be one of `0` (ok), `1` (warning), `2` (critical) and `3` (unknown).
   LASTSERVICESTATETYPE   | The service's previous state type. Can be one of `SOFT` and `HARD`.
   LASTSERVICESTATECHANGE | The last state change's timestamp.
+  SERVICEDURATIONSEC     | The time since the last state change.
   SERVICELATENCY         | The service's check latency.
   SERVICEEXECUTIONTIME   | The service's check execution time.
   SERVICEOUTPUT          | The last check's output.
diff --git a/lib/icinga/host.cpp b/lib/icinga/host.cpp
index 386114944..fb36c11ae 100644
--- a/lib/icinga/host.cpp
+++ b/lib/icinga/host.cpp
@@ -609,6 +609,9 @@ bool Host::ResolveMacro(const String& macro, const Dictionary::Ptr&, String *res
 		} else if (macro == "LASTHOSTSTATECHANGE") {
 			*result = Convert::ToString((long)hc->GetLastStateChange());
 			return true;
+		} else if (macro == "HOSTDURATIONSEC") {
+			*result = Convert::ToString((long)(Utility::GetTime() - hc->GetLastStateChange()));
+			return true;
 		}
 
 		hccr = hc->GetLastCheckResult();
diff --git a/lib/icinga/service.cpp b/lib/icinga/service.cpp
index 6caa1aa5f..5092640ec 100644
--- a/lib/icinga/service.cpp
+++ b/lib/icinga/service.cpp
@@ -424,6 +424,9 @@ bool Service::ResolveMacro(const String& macro, const Dictionary::Ptr& cr, Strin
 	} else if (macro == "LASTSERVICESTATECHANGE") {
 		*result = Convert::ToString((long)GetLastStateChange());
 		return true;
+	} else if (macro == "SERVICEDURATIONSEC") {
+		*result = Convert::ToString((long)(Utility::GetTime() - GetLastStateChange()));
+		return true;
 	}
 
 	if (cr) {