Good morning, as can be seen in the image below, I made a select to get the current date and it is at +3.
How can I change this date / time?
SQL Server uses by default the regional settings that are determined in your Windows.
You can only change your server configuration:
Control Panel - > Region & Language - > Change Location - > Change Format and Location
More like you do not have access you can create a Query that uses the DATEADD function subtracting the 3 hours, this way:
SELECT DATEADD(HOUR, -3, GETDATE())
Result: