Add hour
How to add hour to date DATEADD function with getdate, sysdatetime, current_timestamp.
Examples
select dateadd(MI, 60, '2018-01-06 18:01:13.777');
select dateadd(HH, 1, '2018-01-06 18:01:13.777');
select dateadd(HOUR, 3, '2018-01-06 18:01:13.777');
select dateadd(HOUR, 1, getdate());
select dateadd(HOUR, 2, sysdatetime());
select dateadd(HOUR, 3, current_timestamp);