Is there a way to implement a Firebase server-side countdown timer in Android Studio?

I want the timer to be server side, meaning that whenever a user opens my app the counter will always be at the same time for all users.

I read the answers to [this](https://stackoverflow.com/questions/25051212/firebase-countdown-timer-synched-across-multiple-clients) question, but they're 2+ years old and Firebase changed a lot since. It was acquired by Google in October 2014 and a significant number of new features were featured in May 2016 at Google I/O.

If Firebase can't provide that feature, is there another platform that can provide server-side countdown?