diff --git a/lib/optimization/table_data.go b/lib/optimization/table_data.go
index c7cb08421..9a5681c89 100644
--- a/lib/optimization/table_data.go
+++ b/lib/optimization/table_data.go
@@ -296,7 +296,7 @@ func (t *TableData) MergeColumnsFromDestination(destCols ...columns.Column) erro
 				// If the column in the destination is a timestamp_tz and the in-memory column is a timestamp_ntz, we should update the layout to contain timezone locale.
 				if foundColumn.KindDetails.ExtendedTimeDetails.Type == ext.TimestampTzKindType && inMemoryCol.KindDetails.ExtendedTimeDetails.Type == ext.TimestampNTZKindType {
 					if inMemoryCol.KindDetails.ExtendedTimeDetails.Format != "" {
-						inMemoryCol.KindDetails.ExtendedTimeDetails.Format += ext.TimezoneOffset
+						inMemoryCol.KindDetails.ExtendedTimeDetails.Format += ext.TimezoneOffsetFormat
 					}
 				}
 
diff --git a/lib/typing/ext/variables.go b/lib/typing/ext/variables.go
index fba72f2b5..defea4453 100644
--- a/lib/typing/ext/variables.go
+++ b/lib/typing/ext/variables.go
@@ -44,17 +44,17 @@ var SupportedTimeFormats = []string{
 	AdditionalTimeFormat,
 }
 
-const TimezoneOffset = "Z07:00"
+const TimezoneOffsetFormat = "Z07:00"
 
 // RFC3339 variants
 const (
 	RFC3339MillisecondUTC  = "2006-01-02T15:04:05.000Z"
 	RFC3339MicrosecondUTC  = "2006-01-02T15:04:05.000000Z"
 	RFC3339NanosecondUTC   = "2006-01-02T15:04:05.000000000Z"
-	RFC3339Millisecond     = "2006-01-02T15:04:05.000" + TimezoneOffset
+	RFC3339Millisecond     = "2006-01-02T15:04:05.000" + TimezoneOffsetFormat
 	RFC3339MillisecondNoTZ = "2006-01-02T15:04:05.000"
-	RFC3339Microsecond     = "2006-01-02T15:04:05.000000" + TimezoneOffset
+	RFC3339Microsecond     = "2006-01-02T15:04:05.000000" + TimezoneOffsetFormat
 	RFC3339MicrosecondNoTZ = "2006-01-02T15:04:05.000000"
-	RFC3339Nanosecond      = "2006-01-02T15:04:05.000000000" + TimezoneOffset
+	RFC3339Nanosecond      = "2006-01-02T15:04:05.000000000" + TimezoneOffsetFormat
 	RFC3339NanosecondNoTZ  = "2006-01-02T15:04:05.000000000"
 )