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  • Blog Post: Precision and accuracy of DateTime

    The DateTime struct represents dates as a 64 bit number that measures the number of “ticks” since a particular start date. Ten million ticks equals one second. That’s a quite high degree of precision . You can represent dates and times to sub-microsecond accuracy with a DateTime, which is typically more...
  • Blog Post: Eric's Complete Guide To VT_DATE

    I find software horology fascinating. The other day, Raymond said "The OLE automation date format is a floating point value, counting days since midnight 30 December 1899. Hours and minutes are represented as fractional days." That's correct, but actually it is a little bit weirder than that. I...
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