ention, data> A string unique to a time duration of 24 hours between 2 successive midnights defined by the local time zone. The specific representation of a date will depend on which calendar convention is in forcee.g., Gregorian, Islamic, Japanese, Chinese, Hebrew etc. as well as local ordering conventions such as UK: day/month/year, US: month/day/year. Inputting and outputting dates on computers is greatly complicated by theseef="module.php?name=Lexikon&file=search&eid=1&query=localisation">localisation issues which is why they tend to operate on dates internally in some unified form such as seconds past midnight at the start of the first of January 1970. Many software and hardware representations of dates allow only two digits for the year, leading to theef="module.php?name=Lexikon&file=search&eid=1&query=year 2000">year 2000 problem. ef="module.php?name=Lexikon&file=search&eid=1&query=Unix manual page">Unix manual page: date(1), ctime(3). (1997-07-11)