7 string references to 'format_interval' in Drupal 5

aggregator_admin_settings in modules/aggregator/aggregator.module

aggregator_form_feed in modules/aggregator/aggregator.module

Generate a form to add/edit feed sources.

poll_form in modules/poll/poll.module

Implementation of hook_form().

statistics_access_logging_settings in modules/statistics/statistics.module

system_error_reporting_settings in modules/system/system.module

system_performance_settings in modules/system/system.module

user_block in modules/user/user.module

Implementation of hook_block().