diff --git a/src/headers/switch-time.hpp b/src/headers/switch-time.hpp
index b9692bad..888db150 100644
--- a/src/headers/switch-time.hpp
+++ b/src/headers/switch-time.hpp
@@ -20,7 +20,7 @@ typedef enum {
 
 struct TimeSwitch : SceneSwitcherEntry {
 	timeTrigger trigger = ANY_DAY;
-	QTime time = QTime();
+	QTime time = QTime(0, 0);
 
 	const char *getType() { return "time"; }
 
diff --git a/src/switch-time.cpp b/src/switch-time.cpp
index 4b64a542..b513ad2c 100644
--- a/src/switch-time.cpp
+++ b/src/switch-time.cpp
@@ -74,6 +74,9 @@ void AdvSceneSwitcher::on_timeDown_clicked()
 
 bool timesAreInInterval(QTime &time1, QTime &time2, int &interval)
 {
+	if (time1.isNull() || time2.isNull())
+		return false;
+
 	bool ret = false;
 	QTime validSwitchTimeWindow = time1.addMSecs(interval);