Here is a nice trick: can make your Mac announce the time out loud in the quarter hour, the half hour or every hour using a hidden function in System Preferences. Here's how to set it up.
First, Open System Preferences by clicking the Apple icon in the top left corner of your screen and selecting “System preferences” in the menu that appears.
On “System preferences” on macOS Catalina or earlier, click on “Date and Time”. On macOS 11 Big Sur o posterior, click on “Dock & Menu Bar”.
If you are running Catalina or an earlier version, click on the tab “Watch” in the preferences “Date and Time”. In Big Sur or later, scroll down sidebar “Dock & Menu Bar” and click “Clock”.
Once you are in the preferences “Watch”, place a check mark next to “Announce the time”. After, using drop down menu, you can customize if you want your Mac to announce the time on the hour, in the half hour or in the quarter of an hour.
As an example, if you select “In the quarter of an hour”, you will hear announcements at 2:00 p. M., 2:15 p. M., 2:30 p. M. AND 2:45 p. M. The voice will say: “It's two in the afternoon”. clock "or" It's two forty-five ".
If you want to change the voice that tells the time out loud, Click the button “Customize voice”. On that screen, you can select a male or female voice and also adjust the speed of speech.
Thereafter, close System Preferences and you're done. As long as your system volume is high, you will hear the spoken time at the intervals you set. Have fun!