TABLE 2: The number of date representations used in computer programming has continued to increase during the past few decades, further complicating Y2K rollover correction. Variety of Computer Date Representations AS-OF, CYYDDD, ASOF CYYDDMM, BEGIN, CYYMMDD BEG, CURR, BGN CURRENT, CCYY, DATE, START_DAT, TERM DTE, TIME DT, TIMESTAMP, DAY, TIME-STAMP DA, TIMEDATE DD, THISDATE, DDMMYY, TOD, DDDYY, T-O-D, DIFFDATE WEEK, DOB, WEEKDAY, DOH, YEAR, END YR, EXPIRE, YY, EXP, YMD, JULIAN YYMMDD, MONTH, YYDDD, MON, MO, MMMMDY, MMDDYY, MMYY Source: Raytheon Engineers & Constructors.