diff --git a/Foundation/src/DateTimeFormatter.cpp b/Foundation/src/DateTimeFormatter.cpp
index 1b5084cf9..2c6fcb72f 100644
--- a/Foundation/src/DateTimeFormatter.cpp
+++ b/Foundation/src/DateTimeFormatter.cpp
@@ -45,7 +45,7 @@ namespace Poco {
 
 void DateTimeFormatter::append(std::string& str, const LocalDateTime& dateTime, const std::string& fmt)
 {
-	DateTimeFormatter::append(str, dateTime.utc(), fmt, dateTime.tzd());
+	DateTimeFormatter::append(str, dateTime._dateTime, fmt, dateTime.tzd());
 }