DBMS defaults to 19xx and stores. Comparing a date in 19xx with a date in 20xx assumes both are in 19xx. Payroll deduction calculations for years in 20xx incorrectly mistake the year as 19xx and fail to apply recent changes in tax laws. First quarter of 2000. Calculating day of week for all dates following this date will be incorrect.
Hardware integers holding the offset value can overflow past the maximum corresponding date.
This may lead to undefined behaviors. This system call returns a signed 32-bit integer holding the number of seconds since the epoch. The epoch is defined as the birth of UNIX, which is January 1, 1970. The maximum value for the 32-bit integer is 2147483647 seconds. Applications must make the same century assumptions about 2-digit years.