History Element (Regional Settings)
Last modified: July 15, 2011
Applies to: SharePoint Foundation 2013 | SharePoint Server 2013
Used in TIMEZONE.XML (%ProgramFiles%\Common Files\Microsoft Shared\web server extensions\15\CONFIG) to preserve former time zone definitions, so that, after the new 2007 time zones take effect, time values for 2006 and earlier will still be calculated correctly.
<History Year = "Integer"> <StandardTime> ... </StandardTime> <DaylightTime> ... </DaylightTime> </History>