diff --git a/ASADTool/ASADTool.cpp b/ASADTool/ASADTool.cpp
index d56b6c0..acf8551 100644
--- a/ASADTool/ASADTool.cpp
+++ b/ASADTool/ASADTool.cpp
@@ -72,7 +72,7 @@ int ProcessFileDatesInfo(FILE *f, uint32_t length, PortabilityLayer::MacFileProp
 		return -1;
 	}
 
-	const int64_t asEpochToMacEpoch = -3029547600LL;
+	const int64_t asEpochToMacEpoch = 3029547600LL;
 
 	// Mac epoch in Unix time: -2082844800
 	// ASAD epoch in Unix time: 946702800
diff --git a/AerofoilWeb/GpSystemServices_Web.cpp b/AerofoilWeb/GpSystemServices_Web.cpp
index bb004a7..933210f 100644
--- a/AerofoilWeb/GpSystemServices_Web.cpp
+++ b/AerofoilWeb/GpSystemServices_Web.cpp
@@ -91,7 +91,7 @@ GpSystemServices_Web::GpSystemServices_Web()
 int64_t GpSystemServices_Web::GetTime() const
 {
 	time_t t = time(nullptr);
-	return static_cast<int64_t>(t) - 2082844800;
+	return static_cast<int64_t>(t) + 2082844800;
 }
 
 void GpSystemServices_Web::GetLocalDateTime(unsigned int &year, unsigned int &month, unsigned int &day, unsigned int &hour, unsigned int &minute, unsigned int &second) const