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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=25560 DateUtils.truncate() is off by one hour when using a date in DST switch 'zone' Summary: DateUtils.truncate() is off by one hour when using a date in DST switch 'zone' Product: Commons Version: 2.0 Final Platform: All OS/Version: All Status: NEW Severity: Major Priority: Other Component: Lang AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Try this using a Central European TimeZone: import java.util.Calendar; import org.apache.commons.lang.time.DateUtils; Calendar cal = Calendar.getInstance(); cal.set(Calendar.MONTH, Calendar.MARCH); cal.set(Calendar.YEAR, 2003); cal.set(Calendar.DAY_OF_MONTH, 30); cal.set(Calendar.HOUR_OF_DAY, 5); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0); Date date_20030330 = cal.getTime(); Date expDate = DateUtils.truncate(date_20030330, Calendar.DATE); System.out.println(expDate.toString()); -> Sat Mar 29 23:00:00 MET 2003 instead of Sun Mar 30 00:00:00 MET 2003 If the calendar instance represents a date AFTER the daylight savings time switch and will be truncated to a time BEFORE the daylight savings time switch, then the resulting date is wrong. (Daylight savings time was Sun Mar 30 02:00:00 resetting to 01:00.00.) Might also happen when rounding up dates over the daylight savings time switch... --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
