This will explain you which date format should be used if you want to work with Date data type.

This lesson will teach you how to add a number of days to the Date data type, and then display the new Date afterwards. For example, the Begin Date is 2015/11/24, we input 7 as the number of days, then the End Date will automatically filled-in with 2015/12/01.

This lesson will teach you how to add a number of minutes to Time data type using Javascript. For example, the Begin Time is 01:35:00, and we want the time will be added with 30 minutes, then the End Time will automatically filled-in with 02:05:00.

This lesson will teach you how to disable the previous dates using JSCalendar extension. Let’s say today is December 28, 2015, then when user pick a date using the DatePicker, the previous dates like December 27, 26, 25, and so forth will be disabled in that DatePicker.

This lesson will teach you how to compare the certain date with today’s date using Javascript. For example, we want to force users have to enter a date that equal to or greater than today’s date.