diff --git a/UtcConverter.bas b/UtcConverter.bas
index 1cb956e..fbca3a3 100644
--- a/UtcConverter.bas
+++ b/UtcConverter.bas
@@ -185,7 +185,8 @@ Public Function ParseIso(utc_IsoString As String) As Date
                 Case 1
                     utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), VBA.CInt(utc_OffsetParts(1)), 0)
                 Case 2
-                    utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), VBA.CInt(utc_OffsetParts(1)), VBA.CInt(utc_OffsetParts(2)))
+                    ' VBA.Val does not use regional settings, use for seconds to avoid decimal/comma issues
+                    utc_Offset = TimeSerial(VBA.CInt(utc_OffsetParts(0)), VBA.CInt(utc_OffsetParts(1)), Int(VBA.Val(utc_OffsetParts(2))))
                 End Select
                 
                 If utc_NegativeOffset Then: utc_Offset = -utc_Offset
@@ -200,7 +201,8 @@ Public Function ParseIso(utc_IsoString As String) As Date
         Case 1
             ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), VBA.CInt(utc_TimeParts(1)), 0)
         Case 2
-            ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), VBA.CInt(utc_TimeParts(1)), VBA.CInt(utc_TimeParts(2)))
+            ' VBA.Val does not use regional settings, use for seconds to avoid decimal/comma issues
+            ParseIso = ParseIso + VBA.TimeSerial(VBA.CInt(utc_TimeParts(0)), VBA.CInt(utc_TimeParts(1)), Int(VBA.Val(utc_TimeParts(2))))
         End Select
         
         ParseIso = ParseUtc(ParseIso)