Google does not want to commit to a specific time period in which your page is newly crawled and backlinks are detected. Here, the initial situation of the corresponding website often plays an important role. The more relevant the content of the page is for Google, the more regularly the Googlebot will crawl the content of the page. If the page is already very high in the ranking, a single backlink more, will not change much in this position. However, the situation is different for websites that can still rise in the ranking. The interval in which crawling takes place is greater and therefore it takes longer for Google to recognise new backlinks. However, this can help the website to rise in the SERPs.