Hey everyone!
We’re happy to announce that now you can choose the start and end date for the timer. Once the time is over, the widget will disappear from the page:
Guys, currently, this feature is available only in the widgets created after this release. However, the good news is that we can manually update your existing widgets on our end 
Check this post for more details - Countdown Timer: [MAJOR UPDATE] Auto-repeat option, layout enhancements, new buttons, themes and more! 🔥