Hello , I want to know java code to chart customizing the intervals in the category axis (graph chart) I want to know how time intervals input odd days to category axis for example ) time data is inserted at one-minute intervals to my db 2015-08-01 00:01:00 2015-08-01 00:02:00 2015-08-01 00:03:00 ... 2015-08-02 00:01:00 ... 2015-08-03 00:00:00 -> 08/01 08/03 08/05 08/07 ........ Please help me Thanks in advance