Daily Countdown

My students are working on designing apps to improve someone's Halloween experience. One student is trying to add a daily countdown to Halloween and we are struggling to figure out the best way to go about it. I am new to MIT App Inventor and appreciate any suggestions. Thanks!

use clock.duration block:

Also you can try this extension too

Thank you all for the suggestions! I was having a hard time finding how to do daily but this seems pretty simple. I appreciate it!

Here's an old countdown timer from the transition between AI1 and AI2 ...

ByeByeAI.aia (4.0 KB)

global hours

global Deadline_Instant
global excess_ms

global minutes
global Seconds
Setting the deadline

you want timer to run daily? like this? i do not understand completely your query.. Just i tried with that extension, thats all