A typical abbreviation for Stone Mills: Stone Mls. (or less commonly used: Stone Mlls.)
Time Zone: Stone Mills lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time. The time zone in French: EST- Heure Normale de l'Est (HNE), EDT- Heure Avancée de l'Est (HAE).
When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 613 code has been Overlayed with one of the following codes: 343 or 753. New phone numbers in the Stone Mills area will be assigned with one of these codes: 613, 343 or 753. As a result, placing a call in the Stone Mills area will require 10-digit dialing (where you enter both the area code and then the phone number).