Need a little MSSQL help

[Sirex]

One of the servers (infact them all) use MSSQL at work.

I'm editing a query but I want to know if this does as expected

convert(datetime, CONVERT(CHAR(12),(GETDATE()+(CASE WHEN (DATEPART(month, GETDATE()+65) < 4) THEN 65*(4-DATEPART(month, GETDATE()+65)) ELSE 65 END)),3)+ ' 23:59:59'))

convert(
	datetime, 
	CONVERT(CHAR(12),(
		GETDATE()+(
			CASE WHEN 
				(DATEPART(month, GETDATE()+65) < 4) 
			THEN 
				65*(4-DATEPART(month, GETDATE()+65)) 
			ELSE 
				65 
			END
		)
	),3)+ ' 23:59:59'))

What it needs to do is
This bit here
(GETDATE()+(CASE WHEN (DATEPART(month, GETDATE()+65) < 4) THEN 65*(4-DATEPART(month, GETDATE()+65)) ELSE 65 END))

On GETDATE()+65 = jan return 65*3
On GETDATE()+65 = feb return 65*2
On GETDATE()+65 = mar return 65
On GETDATE()+65 >= Apr return 65

I cant edit the whole query, just that the where, as I dont have access to the entire query.
I cant test either as the systems locked off, I only have blind access via the client for the Patient Access System.
So if it messes up i cant tell why.
Anyone know if that works...

[Slaughter]

Perhaps download the Express Edition to test it out locally?

[Sirex]

I found this site...
New to me, but it worked.
It also proved my math is bad XD

http://sqlfiddle.com/#!3/4f1ee/42