If you've enabled maintenance mode for your website, you can also include a countdown timer on the page.

Add countdown timer

1. Sign in to your My Services page.
2. Click the Web Hosting link.
   
3. Click the WordPress Toolkit link on the left toolbar.
   
4. In the Dashboard section for the selected website, click the Maintenance mode Options icon.
   
5. Scroll down to Timer and toggle on Countdown timer. Now enter either days, hours or minutes in Remaining time. 
   
6. Click the OK button to save the changes and the Preview button to view the changes.
   
7. When you're ready to activate your maintenance page, toggle on Maintenance mode.