How to add a variable number of hours to a date in PostgreSQL?

Question

Apparently, PostgreSQL doesn\'t have DATEADD, because you can just use the + or - operators.

I need to add a number of hours t

Answer 1

Found the answer, in another SO question:

date + interval '1' minute * FLOOR(start_time * 60)

Hope that helps anyone

Answer 2

If anyone wants to add in time stamp then

select time '05:00' - interval '2 hours'    

Answer 3

The one worked for me is

SELECT date_field + interval '1' HOUR * start_time

start_time can be any numerical value.

Answer 4

Since you want to add hours, it should rather be:

SELECT date_field + interval '1h' * start_time

start_time can be any numerical value.