CalloutAlarm is an alarm clock application that reads out the time with a human voice when the specified time comes.
The CalloutAlarm application reads the time periodically with the voice of the macOS speech function. Because the CalloutAlarm inform you of the time periodically by human voice, you will be almost surely waked up.
Attension In order for CalloutAlarm to work reliably, please make sure that the Mac wakes up from the sleep state at the specified time.
https://github.com/hgwr/CalloutAlarm/issues
Alarm clock, clock, alarm, human voice time reading