i m showing dates in grpah. but the problem is i need to show date on x-axis as

2/18/2000 To 8/18/2000 and so on
and i get this date from a table, but the problem is that date order is not ascending as i required like

2/3/2000 To 2/7/2000 2/13/2000 to 2/17/2000 2/8/2000 To 2/12/2000
like in this code u can see 2/13/2000 is before 2/8/2000, the other way around i tried is to put date in yy/MM/dd format but it makes it more difficult to read date on chartrs, wat to do???????????