How much actual time does it take for a backlink to have effect?

[AidanSEo]

How much actual time does it take for a backlink to have effect in the SERP's? Backlink checker tools can take weeks to catch the link. Is there any way to check the link right away after creation?

What matter is that Google indexes the link, regardless of how long it takes backlink checker tools to pick up on them.
The time varies, depending on how long it takes for Google to crawl the site that you link is placed on, though there are steps you can take to improve the indexing time.