C# :: Using DateTime Field From SQL Database

I have a DateTime field on a database it looks like this :

2014-10-21 14:34:37.697

I want to use it, as is, in an UPDATE statement something like:

UPDATE PayrollRuns SET IsProcessed = 'True' WHERE Date_Time_Triggered = '2014-10-21 14:34:37.697'

I must have the exact date & time as that uniquely identifies the record.

The problem I'm having is getting it off the database and into an C# variable without it being changed.

I can get it into a string but it changes it becomes:

21/10/2014 14:34:37

I've got it in an object. I've tried:

string date_Time_Triggered = databasesRow["Date_Time_Triggered"].ToString();
//
//and
//
var date_Time_Triggered = databasesRow["Date_Time_Triggered"];

[Code] ....