Year 2011 problem

The year 2011 problem or the Y1C problem (simplified Chinese: 民国百年虫; traditional Chinese: 民國百年蟲; pinyin: Mínguó bǎinián chóng; lit.

Similar to the year 2000 problem faced by much of the world in the lead-up to 2000, the year 2011 problem is a side effect of Taiwan's use of the Republic of China calendar for official purposes.

Many computers were already using a three-digit system for dates, with a zero being used as the first digit for years below 100 (Gregorian 2010 or earlier).

[citation needed] Some government documents such as driver's licenses already refer to years over 100; nothing more than minor glitches were reported.

[citation needed] Some iPhone users reported that their alarm tool failed to function on 1 January 2011.