: The thing is that time_t is much more of an "internal" format than :: the two digit "year" that led to the Y2K "problems." The number of :: programs that store binary time_t in a database is vanishingly :: small :: compared to the number of programs that stored "YY", and you could :: probably change the base year, or the increment, and 80% of :: programs :: wouldn't even notice... I'm not so sure, I was in a university research lab today, and there battered in a corner was a computer from circa mid nineties, still requires a 5.25" floppy to crank it up, uses DOS and is still used, as it still performs the measurements required by their fluoroscopic microscopy. I have seen lab equipment made by a well known Austrian lab equipment company that still uses DOS based firmware to run their systems. Apart from providing the experiment date, not too much else is date based - but the point is, if high tech facilities are using what many or most would consider outdated technology, it isn't beyond the realms of possibility that in 2038 computers or equipment made in 2000 would still be in use. Colin -- cdb, colin@btech-online.co.uk on 24/04/2008 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=7988359 : -- No virus found in this outgoing message. Checked by AVG. Version: 7.5.523 / Virus Database: 269.23.4/1395 - Release Date: 4/24/2008 7:24 AM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist