Sql 在查询条件中选择日期和小时

我正在postgres数据库上使用PGADMIN 4。我想使用以下查询进行提取，但也要添加小时。例如，当前日期为早上6点

多谢各位

SELECT object_key, audited_changes, created_at
FROM pg_audits
WHERE
source_action = 'funding' AND
created_at >= CURRENT_DATE -1 AND
created_at < CURRENT_DATE
ORDER BY
created_at DESC

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可以用任意小时数代替N

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非常感谢你

SELECT object_key, audited_changes, (created_at + INTERVAL 'N HOURS') as created_at 
FROM pg_audits
WHERE
source_action = 'funding' AND
created_at >= CURRENT_DATE -1 AND
created_at < CURRENT_DATE
ORDER BY
created_at DESC