Unknown twig time_diff filter error
9 January 2025
Getting an "Unknown filter time_diff" error in your Drupal Twig templates? That's because it isn't a native Drupal filter!
This guide provides the complete, step-by-step solution to implement a custom time_diff Twig filter in Drupal 9/10. Learn how to create a simple custom module, define a service for dependency injection (using the core datetime.time service), and write the PHP logic to calculate and format the time difference (e.g., "5 minutes ago"). This is the clean, maintainable way to extend Twig in Drupal.
This guide provides the complete, step-by-step solution to implement a custom time_diff Twig filter in Drupal 9/10. Learn how to create a simple custom module, define a service for dependency injection (using the core datetime.time service), and write the PHP logic to calculate and format the time difference (e.g., "5 minutes ago"). This is the clean, maintainable way to extend Twig in Drupal.