sum 1 day in date in sql server code example

Example 1: sql server current date minus 5 years

SELECT GETDATE() 'Today', 
           DATEADD(day,-2,GETDATE()) 'Today - 2 Days'
SELECT GETDATE() 'Today', 
           DATEADD(dd,-2,GETDATE()) 'Today - 2 Days'
SELECT GETDATE() 'Today', 
           DATEADD(d,-2,GETDATE()) 'Today - 2 Days'

Example 2: datetime add 2 hours sql

DATEADD(HOUR, 2, GETUTCDATE())