The start dates and the end dates for daylight saving time (DST) in many countries change from year to year. Additionally, some countries may change their DST recognition policy or may change the local time offset from Coordinated Universal Time (UTC). In this scenario, some schedules and some applications that depend on date and time calculations may have a problem.
Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.