How can I change the countdown format?

How can I change the countdown format?

The countdown format can be updated from the backend configuration.
Stores ⟶ Configuration ⟶ Magediary ⟶ Product Scheduler ⟶ Countdown Format {countdown}

Moreover, we can update the launch and ends in time text format from the follconfigurations
  1. Launch Time: Stores ⟶ Configuration ⟶ Magediary ⟶ Product Scheduler ⟶ Launch Time ⟶ Countdown Format {countdown}  
  2. Ends In Time: Stores ⟶ Configuration ⟶ Magediary ⟶ Product Scheduler ⟶ Ends In Time ⟶ Countdown Format {countdown}