Depending on the type of watch chosen, there are different ways to set a talking watch time. An atomic watch, for instance, connects to a radio signal, so the initial setup needs to include specific steps for setting your home time zone.
Once the atomic watch is set up, it connects regularly to the radio signal to ensure accurate timekeeping, as well as adjustments for Daylight Savings Time and leap years.
Other talking watches will have different controls for setting the time, day, date and more. And still others will connect with smartphones to add functionality and features and adjust time accurately.