Thank you for the fast help When using time and date as you suggestet the order stays. Note for users with same problem The date just needs to be included in the data. When using " BottomAxis.DateTimeFormat := 'hh:mm'; " the date is not displayed in the chart the sort parameter does not help in this...

I have data with a timestamp (hh:mm - Format) that is used for the x-axis. If the time starts e.g. at 22:00 and ends at 3:00 am the next morning, then the chart shows the data from 0:00 to 3:00 am first and then the previous data starting at 22:00 to 0:00 ORDER of DATA as recorded time data 22:00 1 ...