Early and late reviews

A page is due when its next review date has arrived.

If the review date is today or already in the past, the page can appear in a review session.

Due is not a strict deadline. It is Yuhimo’s recommendation for when the page should return.

An early review happens when you rate a learning page before its scheduled review date.

For example, if a page was planned for day 20 but you review it on day 10, Yuhimo treats that review as early.

Early reviews are allowed in some flows, but they do not count the same as reviews done closer to the planned date.

When you review early, the page has not yet gone through the full planned interval.

Because of that, Yuhimo limits how much the next interval can grow. This is part of FSRS-light scheduling behavior.

This prevents the schedule from being inflated by reviewing pages too soon. Early reviews can still help you reinforce knowledge, but they provide less scheduling progress.

If a page was scheduled after 20 days and you review it after 10 days, Yuhimo treats that as partial progress rather than a full completed interval.

A late review happens when you rate a page after its scheduled review date has passed.

If a page was due three days ago and you review it today, the page is overdue.

Overdue pages stay available for review until you rate them.

If a page is overdue and you still remember it, Yuhimo may treat that as a stronger signal.

The reason is simple: the page survived longer than expected. If you remembered it after a longer delay, the material may be more stable than the previous schedule estimated.

Because of this, successful overdue reviews can sometimes move the next review further into the future.

Again means the material was mostly forgotten.

Because of that, an overdue page does not receive a stability bonus when you choose Again.

If you forgot the material, Yuhimo schedules it more conservatively so it can come back sooner.

The exact interval still depends on the page’s current stability, difficulty, and review history.

You can review early when you want to refresh a topic or focus on a specific branch.

This is useful for preparation, deep dives, or manual practice. Scoped learning sessions can help you focus on one area.

But early reviews should not be used to force faster interval growth. Yuhimo intentionally limits that effect.

If you miss reviews for a few days or weeks, Yuhimo does not delete or reset the pages.

Overdue pages remain due until you review them.

When you return, rate each page honestly using self-assessment. If you still remember it, the next interval may grow. If you forgot it, choose Again and Yuhimo will bring it back sooner.

Early, on-time, and overdue timing do not change the review-phase one-grade-per-day rule.

For pages in review, only one grade per calendar day is recorded, whether the review was early, on time, or overdue. Learning-phase pages follow short step intervals instead.

See One grade per day for the full rule.

You have a page called "React Query caching".

Yuhimo schedules it for review in 20 days.

Scenario A: You review it after 10 days and choose Good. Because the review was early, Yuhimo gives only partial scheduling progress.

Scenario B: You review it after 25 days and choose Good. Because the page was overdue and you still remembered it, Yuhimo may treat it as more stable than expected.

Scenario C: You review it after 25 days and choose Again. Because you mostly forgot it, Yuhimo schedules it sooner instead of giving an overdue boost.

Early and late reviews help Yuhimo interpret timing more accurately.

Early reviews can reinforce knowledge, but they receive less scheduling progress. Late successful reviews may increase stability more because they show the page lasted longer than expected. Again remains conservative because it means the material was mostly forgotten.

Is it bad to review a page early?

No. Early reviews can be useful, especially for focused study. They just do not receive the same scheduling progress as reviews done closer to the planned date.

Why did my early review not move the date much?

Because Yuhimo limits interval growth when a page is reviewed before enough time has passed.

Is an overdue page failed?

No. Overdue only means the recommended review date has passed. You can still review the page normally.

Why can an overdue review move the next date further?

If you still remembered the material after a longer delay, Yuhimo may treat the page as more stable than expected.

Does Again get an overdue bonus?

No. Again means the material was mostly forgotten, so Yuhimo schedules the page more conservatively.

Can I rate the same overdue page multiple times today?

In review, no — one grade per calendar day even when overdue. During the learning phase, the page can return when its next short step is due.