I went on holiday over actual Y2K, flew to Australia and spent the Big Night on the beach, completely incommunicado. It focused the whole team, we had to be OK

I went on holiday over actual Y2K, flew to Australia and spent the Big Night on the beach, completely incommunicado. It focused the whole team, we had to be OK for it, because if we weren't we were fucked ;) We did multiple dry runs, setting server times to 31/12/99 23:55 and waiting 5 mins to see if anything died. Mostly it was OK, most of our systems were OK, but a few were dodgy and needed some changes. The Big Night rolled around and we were OK. The planning had worked, and nothing fell over. I got the email on Jan 1st - all good.