Are you talking about DateField in net.rim.api??? If so,
There's a method called getDate() that returns long.
What you do is create a Date object and pass the long value into constructor.
Code:
Date date = new Date(DateField.getDate());
// gets calendar instance to retrieve time
Calendar cal = Calendar.getInstance();
// sets the date object
cal.setDate(date);
// then you can do
cal.get(Calendar.HOUR)
cal.get(Calendar.MINUTE)
quote from documentation
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the given time field (either YEAR, MONTH, DATE, DAY_OF_WEEK, HOUR_OF_DAY, HOUR, AM_PM, MINUTE, SECOND, or MILLISECOND
But yours is able to select a time range and I dont know what class can do that since I haven't really play with time yet. Hope the code provided helps!!
Regards,
Lanf