Since: API Level 3
package

android.text.format

Classes

DateFormatUtility class for producing strings with formatted date/time. 
DateUtilsThis class contains various date-related utilities for creating text for things like elapsed time and date ranges, strings for days of the week and months, and AM/PM text etc. 
FormatterUtility class to aid in formatting common values that are not covered by the standard java.util.Formatter. 
TimeThe Time class is a faster replacement for the java.util.Calendar and java.util.GregorianCalendar classes.