There is no specific timeframe for when your website will appear in search engine results. Assuming you registered your site with Google Search Console (GSC) and Bing Webmaster Tools (BWT), it may take days or weeks for your website to be indexed by search engine crawlers. Adding and managing your sitemaps and robot.txt files are helpful in expediting the indexing process.
Without the ability to measure your SEO effectiveness, you won’t be able to review tactics and adjust as necessary to earn the most return-on-investment.