diff --git a/Library/MeasureTime.cpp b/Library/MeasureTime.cpp
index e34970b3..8f2d0c68 100644
--- a/Library/MeasureTime.cpp
+++ b/Library/MeasureTime.cpp
@@ -247,7 +247,7 @@ void CMeasureTime::ReadOptions(CConfigParser& parser, const WCHAR* section)
 		}
 		else
 		{
-			double zone = wcstod(timezone, NULL);
+			double zone = parser.ParseDouble(timezone, 0.0);
 			bool dst = 1 == parser.ReadInt(section, L"DaylightSavingTime", 1);
 
 			struct tm* today;