How To Change Good Easy Hard Again Time Anki: Customizing Spaced Repetition Intervals

Adjusting Anki's learning intervals allows you to tailor the spaced repetition algorithm to your personal memory retention rate and study schedule. By modifying the Again, Hard, Good, and Easy values within deck options, you can optimize review loads, prevent card accumulation, and maximize long-term retention efficiency.

Pre-Operation Planning & Deck Optimization Framework

Before modifying the default Anki intervals, understanding how the SuperMemo (SM-2) algorithm calculates review schedules is critical to avoid destabilizing your review queue. Recklessly changing intervals without assessing your current retention rate can cause massive review backlogs or lead to cards being forgotten permanently.

• Essential Tools & Environment: Desktop version of Anki (v2.1.x or newer), administrative access to deck settings, and a stable internet connection if syncing across AnkiWeb and AnkiMobile.
• Mandatory Prerequisite Knowledge: Familiarity with the terms learning steps, graduating interval, ease factor, and graduating cards. Users should maintain a retention rate between 85 percent and 90 percent before implementing aggressive interval adjustments.
• Estimated Duration & Scope: 10 to 15 minutes of configuration time per deck or deck preset, followed by a two-week monitoring period to observe the impact on daily review volume.

Step-by-Step Guide to Modifying Anki Response Intervals

Step 1: Accessing the Deck Options Menu

Navigate to the main Anki deck list screen on your desktop client. Locate the specific deck or deck preset you wish to modify, click the gear icon (or options button) next to the deck name, and select the Options menu to open the comprehensive configuration panel.

Pro-Tip: If multiple decks share the same learning requirements, assign them to a shared deck preset to streamline future interval updates across your entire collection.

Step 2: Modifying Learning Steps (Again and Hard Times)

Locate the Learning Steps section under the New Cards tab. Learning steps dictate the short-term intervals (measured in minutes) a card cycles through before graduating to a mature review card. By default, these are set to "1m 10m".

1. Click into the text box for Learning Steps.
2. Enter your desired minute values separated by spaces (for example, changing it to "15m 1440m" to introduce a 24-hour step before graduation).
3. Understand that pressing "Again" resets the card to the first step, while pressing "Hard" typically repeats the current step or applies a slight multiplier depending on your advanced settings.

Warning: Setting learning steps too high without adequate study time can cause an unmanageable backlog of intra-day reviews that accumulate rapidly during a single session.

Step 3: Adjusting Graduating Intervals and Easy Days

Navigate to the Graduating Interval and Easy Interval fields located further down the New Cards and Review tabs. The graduating interval defines how many days a card waits before its first review after passing all learning steps, while the easy interval defines the initial spacing when the Easy button is pressed on a new card.

1. Enter your desired day count into the Graduating Interval box (default is typically 1 day).
2. Set the Easy Interval value to a higher day count if you consistently find certain cards trivial (default is typically 4 days).
3. Save your changes by clicking the Save button at the bottom of the options window to apply the new scheduling parameters immediately.

Step 4: Fine-Tuning Review Interval Modifiers and Maximums

Go to the Review tab within the deck options to calibrate how the algorithm handles mature cards. The Interval Modifier scales all new intervals up or down by a percentage factor, allowing you to globally stretch or compress the time between reviews.

1. Adjust the Interval Modifier from the default 1.00 down to 0.80 if you find yourself forgetting cards too frequently, or up to 1.10 if you are retaining more than 90 percent of your reviews.
2. Set a Maximum Interval ceiling (e.g., 365 days) to ensure critical material resurfaces at least once a year, preventing the algorithm from pushing review dates decades into the future.

Comparative Overview of Anki Interval Parameters

Troubleshooting Common Interval Misconfigurations

• Symptom: Exploding Review Counts and Backlogs

  
  
  
  • Root Cause: Graduating intervals or learning steps were set too short, or the interval modifier was reduced far below 1.00, causing cards to cycle back into the review queue prematurely.
  • Actionable Fix: Increase your learning steps to include longer durations (such as 1-day steps), raise your interval modifier closer to 1.00, and use the custom study tool to temporarily limit new cards per day until the backlog clears.

• Symptom: High Forgetting Rate on Mature Cards

  
  
  
  • Root Cause: The interval modifier is set too high, or the starting ease factor is aggressive, causing Anki to expand review intervals faster than your memory consolidation rate supports.
  • Actionable Fix: Lower the interval modifier to 0.90 or 0.85, increase the starting ease, and use the "Forget" command on struggling cards to reset them to the learning phase.

• Symptom: Cards Repeating Too Frequently on the Same Day

  
  
  
  • Root Cause: The Again button is mapped to a very short learning step, or multiple steps like "1m 5m 10m" are bogging down single study sessions.
  • Actionable Fix: Remove intermediate steps and consolidate your learning steps to a single longer duration, such as a 15-minute or 30-minute single step.

Frequently Asked Questions

What happens to existing cards when I change my Anki intervals?

Changing deck options alters the scheduling formula for future reviews and new cards, but it generally does not retroactively rewrite the specific due dates of cards currently sitting in your review queue unless you modify the interval modifier or reset the database. Existing cards will begin using the new interval rules the next time you review them and press Good, Hard, or Easy.

How do I make Anki space out cards more aggressively?

To make Anki push review dates further apart, increase your Interval Modifier above 1.00 (for example, to 1.15) and increase your Maximum Interval limit. Additionally, raising the starting ease factor ensures that cards you mark as Easy receive much larger multiplicative jumps in their subsequent review intervals.

What is the best learning step configuration for language learning?

For most vocabulary and grammar decks, many advanced users recommend transitioning to a longer initial step such as "15m 1440m" (15 minutes followed by 1 day). This ensures that you must recall the item across a full sleep cycle before the card officially graduates to the standard review queue.

Why do my intervals shrink drastically when I press Hard?

The Hard button calculates a new interval by multiplying the current interval by a relatively small factor (often starting around 1.2) while simultaneously decreasing the card's individual ease factor. If you repeatedly press Hard on a card, its ease factor drops toward the minimum threshold, causing future successful reviews to grow at a much slower rate.

Can I set different intervals for different decks?

Yes, Anki allows you to create multiple deck options presets. You can assign demanding technical subjects to a preset with shorter intervals and strict learning steps, while assigning casual trivia or language decks to a more relaxed preset with longer graduating intervals.

Master your study workflow today by fine-tuning your Anki intervals to match your cognitive retention capacity and achieve sustainable long-term memory mastery.