WAIT! If you slipped up on your sobriety, you don't need to delete your clock. Instead, you need to reset it.
If you no longer need a clock for whatever reason, here's a walk through on how to do it.
Tap on, "Clocks" from the home screen.
Tap on the clock that you need to delete.
Tap on the gear icon from the clock's bottom menu.
Scroll to the bottom and tap, "DELETE CLOCK".
A confirmation message will appear letting you know that this CANNOT be undone.
If you still want to delete your clock, tap the red, "DELETE" button.
Note: If you have accountability partners, they will not be notified that you deleted your clock.