Interpret UInt64 dateData in .NET DateTime structure?

Question

In looking at a DateTime struct in the debugger via SOS.dll, I see...

  0:096> !DumpVC 000007feed1ddff8  000000028036d890 
  Name:        System.DateTime
  MethodTable: 000007feed1ddff8
  EEClass:     000007feecbed6b0
  Size:        24(0x18) bytes
  File:          C:\Windows\Microsoft.Net\assembly\GAC_64\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.  dll
  Fields:
                MT    Field   Offset                 Type VT     Attr            Value Name
  000007feed1e1158  40000d6        0        System.UInt64  1 instance 5246421159766325152 dateData

How can interpret "5246421159766325152" as a DateTime? Is there a way I can create a DateTime from this value to get the human-readable version?

Answer 1

!Psscor2.PrintDateTime OBJADDR or !sosex.mdt System.DateTime DATAADDR.

Answer 2

DateTime.FromBinary(5246421159766325152)

Answer 3

If the Int64 value is in between DateTime.MinValue.Ticks and DateTime.MaxValue.Ticks, then you can call the overloaded constructor for a DateTime taking an Int64.

Your particular value falls outside of this range though. As @Boo mentioned, you can use the static DateTime.FromBinary method.