Android - How can I disable notification for a specific gmail account during certain hours?

Toggling the syncing of Gmail for the account is the best option. Turning of Gmail sync on a Google account in Android does not prevent you from fetching mail for that account via a method such as "pull to refresh" when you are viewing that account in the Gmail app.

I use Synker to integrate with Tasker, though I know there are other apps that expose Tasker control of specific sync settings on an account by account basis.

The basic outline I have is as follows:

  • A profile named "Work" whose conditions are a combination of a time, 9am-5pm, and a Date, Mon-Fri. It has the same entry and exit task.
  • A task named "Work" that has two items: one to set the sync options of my work Google account to have Gmail sync on that is conditional on if %PACTIVE ~ *Work*, one to set the sync options of my work Google account to /not/ sync Gmail if %PACTIVE !~ *Work*

If I want to read work email when sync is not on for that account, I just open Gmail, switch to that account, and swipe down ("pull to refresh"), fetching the messages from the server.

Try the app Quiet for Gmail from here

It toggles the sync of your email accounts on a schedule you can define. In addition to that, you can also override your schedule for special occasions, like a bank holiday.