SQL Server Uptime

---SQL Server Uptime calculation
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SET NOCOUNT ON
DECLARE @db_cr_date DATETIME, 
@hour int, 
@minut int,
@days int 

SELECT @db_cr_date=crdate FROM 
    master.sys.sysdatabases 
        WHERE NAME='tempdb'

SET @minut = DATEDIFF (mi,@db_cr_date,GETDATE())
SET @days= @minut/1440
SET @hour = (@minut/60) - (@days * 24)
SET @minut= @minut - ( (@hour + (@days*24)) * 60)

Select @@SERVERNAME 
        +' is restarted on '
        + CAST(@db_cr_date as varchar(30)) 
        + ' Server is up and running since last :' 
        + ltrim(str(@days)) +' Days,'
        + ltrim(str(@hour)) +' Hours, '
        + ltrim(str(@minut)) + ' Minuts ' as [Total uptime]
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