!!! Overview
[{$pagename}] is an [LDAPSyntaxes] with an [OID] of [1.2.840.113556.1.4.906][{$pagename}] is a syntax for 64-[bit] [numbers]

!! [Microsoft Active Directory][1][2]
[{$pagename}] Represents a time interval value. The actual time units depend on which [attribute] is using this syntax. This syntax is identical to the [Interval Syntax], except the high and low values are unsigned [integers].

[{$pagename}] is an [LDAPSyntaxes] within [Microsoft Active Directory] with an [OID] [2.5.5.16][2]

[{$pagename}] may also be referred to as:
* [Integer8]
* [ADSTYPE_LARGE_INTEGER]
* [VT_DISPATCH]
* [FILETIME]

! [NumericDate]
If the [{$pagename}] [attribute] is a __date__,  then it is a [NumericDate] and the value represents the number of 100-nanosecond intervals since 12:00 AM January 1, [1601|Year 1601]. __Any [leap seconds] are ignored.__

This number [9,223,372,036,854,775,807] is the maximum value for a 64-bit signed integer in computing and is set when the account ''__never__''.

We refer to this as [LargeInteger Date]

In .NET Framework (and PowerShell) these 100-nanosecond intervals are called ticks, equal to one ten-millionth of a [second]. There are 10,000 ticks per [millisecond]. In addition, [.NET] [Framework] and [PowerShell] [DateTime] values represent dates as the number of [Tick] since 12:00 AM January 1, 0001.

[ADSI] automatically employs the IADsLargeInteger interface to deal with these 64-[bit] [numbers]. This interface has two property methods, HighPart and LowPart, which break the number up into two 32-bit numbers. The HighPart and LowPart property methods return values between -2^31 and 2^31 - 1. 

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Integer8 Attributes|http://www.rlmueller.net/Integer8Attributes.htm|target='_blank'] - based on information obtained 2016-08-26- 
* [#2] - [LargeInteger syntax|https://msdn.microsoft.com/en-us/library/ms684427(v=vs.85).aspx|target='_blank'] - based on information obtained 2016-08-26-