diff --git a/unit_tests/tests/test_fasterEngineSpinningUp.cpp b/unit_tests/tests/test_fasterEngineSpinningUp.cpp
index b0385628a1..1a98f4ed54 100644
--- a/unit_tests/tests/test_fasterEngineSpinningUp.cpp
+++ b/unit_tests/tests/test_fasterEngineSpinningUp.cpp
@@ -7,8 +7,6 @@
 #include "engine_math.h"
 #include "engine_test_helper.h"
 
-extern int timeNowUs;
-
 TEST(sensors, testFasterEngineSpinningUp) {
 	printf("*************************************************** testFasterEngineSpinningUp\r\n");
 
@@ -81,7 +79,7 @@ TEST(sensors, testFasterEngineSpinningUp) {
 	eth.fireFall(60);
 
 	eth.clearQueue();
-	timeStartUs = timeNowUs;
+	timeStartUs = eth.getTimeNowUs();
 	eth.fireTriggerEventsWithDuration(60);
 
 	// check if the mode is now changed to 'running' at higher RPM
diff --git a/unit_tests/tests/test_fuelCut.cpp b/unit_tests/tests/test_fuelCut.cpp
index 50a0e993e1..aed1d0e770 100644
--- a/unit_tests/tests/test_fuelCut.cpp
+++ b/unit_tests/tests/test_fuelCut.cpp
@@ -9,8 +9,6 @@
 #include "event_queue.h"
 #include "tps.h"
 
-extern int timeNowUs;
-
 TEST(fuelCut, coasting) {
 	printf("*************************************************** testCoastingFuelCut\r\n");
 
diff --git a/unit_tests/tests/test_trigger_decoder.cpp b/unit_tests/tests/test_trigger_decoder.cpp
index 292c9bde24..5334dd46b7 100644
--- a/unit_tests/tests/test_trigger_decoder.cpp
+++ b/unit_tests/tests/test_trigger_decoder.cpp
@@ -31,7 +31,6 @@
 #include "spark_logic.h"
 #include "trigger_universal.h"
 
-extern int timeNowUs;
 extern float mockMapValue;
 extern float testMafValue;
 extern WarningCodeState unitTestWarningCodeState;
@@ -1032,11 +1031,11 @@ TEST(big, testFuelSchedulerBug299smallAndLarge) {
 //	assertInjectorDownEvent("L04@8", 8, MS2US(50.0), 0);
 
 
-	engine->executor.executeAll(timeNowUs + 1);
+	engine->executor.executeAll(eth.getTimeNowUs() + 1);
 	// injector goes high...
 	ASSERT_FALSE(enginePins.injectors[0].currentLogicValue) << "injector@1";
 
-	engine->executor.executeAll(timeNowUs + MS2US(17.5) + 1);
+	engine->executor.executeAll(eth.getTimeNowUs() + MS2US(17.5) + 1);
 	// injector does not go low too soon, that's a feature :)
 	ASSERT_TRUE(enginePins.injectors[0].currentLogicValue) << "injector@2";
 
@@ -1052,7 +1051,7 @@ TEST(big, testFuelSchedulerBug299smallAndLarge) {
 //todo	assertInjectorDownEvent("L015@5", 5, MS2US(30), 0);
 
 
-	engine->executor.executeAll(timeNowUs + MS2US(10) + 1);
+	engine->executor.executeAll(eth.getTimeNowUs() + MS2US(10) + 1);
 	// end of combined injection
 	ASSERT_FALSE(enginePins.injectors[0].currentLogicValue) << "injector@3";