By default, the AMPM property is "AM PM". The AMPM property specifies the indicators being displayed when the Label or ToolTip property includes the <%AM/PM%> tag. Use the UnitScale property to change the chart's time unit. Use the MonthNames property to specify the name of the months being displayed in the chart's header. Use the WeekDays property to specify the name for each day in a week. Use the UnitWidth property to specify the width of the time unit