separator String
(default: ',')
Sets a string value that is used to devide the different column values inside the input. The value must be a single character, you cannot use more than one character as a separator.
Example
<input id="timedurationpicker" />
<script>
$("#timedurationpicker").kendoTimeDurationPicker({
columns: [ "hours", "minutes" ],
separator: ":"
});
</script>