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Hi Bryan, > > How would this program work for date before 01/01/1970. They are negative > numbers. > I don't think I've ever seen a unix-date from before 1970?! Normally, these dates are used for things like the system time, the last time a file was updated, or created, or when a log entry is created. Normally these can't be before 1970, since the operating system that created the date wasn't around before 1970! Obviously for dates like birth dates, etc, that can be older than this, you'll want to use a different date format. Especially since a 32-bit integer is very limited in range, you can only represent dates from December 13, 1901 to Jan 19, 2038. Still, if you wanted to, for some reason, use this type of code with negative numbers, you could do so by adding an "if" to the code. If the number is less than 0, convert it to positive (0 - myvar) and then use the SUBDUR op-code instead of the ADDDUR opcode.
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