Add logic to a script -- 4

I need to have logic added to a script to update a column showing the remaining time left using this [login to view URL] for the logic. The script currently will need to compare the tables entries against the new data and on duplicate entries it will update the column with the remaining time and if there's no new entry it will need to guess what happened to entry by using the new logic. - Scraping experience is required. - Knowledge of World of Warcraft is highly preferred.