If you need to calculate dates in your spreadsheets, Excel uses its own unique system, which it calls Serial Numbers. Every date (month, day, year) and time (hour, minute, and second) has an ...

Serial numbers in zone files help your DNS service determine whether it should re-ingest your zone files or ignore them. But there’s more to these pseudo timestamps than meets the eye. In fact, the ...

I lost my MacBook Pro today. I went to the police to file a stolen item report, and they say that without the serial number, there's not much they can do to help, since even if they found the guy who ...