Resetting CLKRelativeDateTextProvider

I have successfully created a complication in Large text for the modular face which creates a countdown timer. However, when the countdown gets to 0, it starts to count up. This is similar to a timer in storyboard where you need to stop the timer or it counts up. However, I can't find a method to stop the time from counting up in a complication.

I have tried to use the getTimelineEntriesForComplication function to create a new template after the countdown finishes to show 00:00, however, it doesn't seem to work.

Has anyone successfully created a countdown complication in which it stops at 0? If so, how did you complete that task.