A fixed page typically returns over a window of days to a couple of months, and which end you land on is set by the cause, not by a calendar. Recovery is not a single deadline you can mark on a wall, it is the sum of three things: how fast the page is re-crawled, how long reprocessing takes to fold the change into the index, and, for some drops, whether you must wait for the next algorithm cycle. Naming a precise day count as a rule would be inventing certainty the process does not have.
For a drop with a concrete, page-level cause, a broken element, a bad edit, a fixed technical issue, the timeline is mostly crawl plus reprocessing. Once the page is re-crawled and the corrected version is reprocessed, the improvement can show within days to a few weeks, faster for pages crawled often and slower for those visited rarely. You can nudge the crawl by requesting indexing, but you cannot force the reprocessing that follows.
For a drop tied to an algorithm update, the clock is different and usually longer. Even after you genuinely improve the page, the position the update set may not lift until the system re-evaluates the site on that axis, which often coincides with a later refresh or update rather than a daily re-score. That is why update-related recoveries can sit for weeks past the fix with nothing moving, then shift when the cycle comes around. The fix is necessary but not sufficient on its own timeline.
So the honest answer is a range anchored to the cause type: shorter and crawl-bound for technical and content fixes, longer and cycle-bound for update-driven drops, and worth re-checking against current crawl behavior since these intervals shift. A page that has truly addressed its cause and simply not been reprocessed yet is in a different position from one that was never going to recover, and the difference is patience, not panic.
For your next recovery, label the drop by its cause first, then set your expectation to weeks for a technical or content fix and to the next update cycle for an algorithmic one, and stop refreshing rankings daily inside that window.