Convert 64bit timestamp to a readable value

Question

In my dataset I have two timestamp columns. The first is microseconds since application was started - e.g., 1400805323. The second is described as 64bit timestamp which I\'m

Answer 1

Assuming that these values were generated today, June 6th 2011, these values look like number of 100-nanosecond intervals since Jan 1st year 1601. This is how Windows NT stores FILETIME. For more concentrated info on this read this blog post of Raymond Chen. These articles also show how to convert it to anything else