Why 10675199.02:48:05.4775807 TimeSpan Maximum for CompilationSection?

Question

I was looking at the metadata for System.Web.Configuration.CompilationSection, and noticed the following attribute on the TimeSpan BatchTimeout property:

[TimeSpanValidator(MinValueString = "00:00:00", 
 MaxValueString = "10675199.02:48:05.4775807")]

Could someone explain why this is the allowed max value? TimeSpan itself has an upper limit, so why would there be another value validation, and why this number?

Answer 1

That is exactly the maximum value of TimeSpan. Quoting MSDN for TimeSpan.MaxValue:

The value of this field is equivalent to Int64.MaxValue ticks. The string representation of this value is positive 10675199.02:48:05.4775807.