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DateTimeExtensionsSubtract Method (DateTime, DateTime, DateTimeUnit, String)

Subtracts the start date from the end date returning the result in the specified unit taking a timezone into consideration.

Namespace:  MongoDB.Driver.Linq
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.21.0+5a9c3311e158910b88195f290e6d4b1b2715d2b2
Syntax
public static long Subtract(
	this DateTime this,
	DateTime startDate,
	DateTimeUnit unit,
	string timezone
)

Parameters

this
Type: SystemDateTime
The original DateTime.
startDate
Type: SystemDateTime
The start date.
unit
Type: MongoDB.Driver.LinqDateTimeUnit
The unit.
timezone
Type: SystemString
The timezone.

Return Value

Type: Int64
The result.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type DateTime. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Remarks
See the server documentation for $dateDiff for information on timezones in MongoDB.
See Also