Microsoft’s 1601 Time Base

Microsoft uses the number of 100-nanosecond intervals since 01 January 1601. Why? No idea. But I’ve had to deal with their funky large integer for a DateTime value as long as I’ve been working with AD. I’ve written functions to turn it int something useful, but that’s a lot of effort when I see a lockoutTime and need to know how recent that is. Enter w32tm which has an “ntte” switch — this allows me to readily tell that the lockout was at 3:01 today and something I need to be investigating.

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