Time Zone by Area Code

Type the three-digit area code or the full phone number into the box at the top of this page. You get the city, the time zone and the current local time. The table below lists every US area code by time zone.

Area code 512 covers Austin, Texas, and is in Central Time. Type any other area code into the lookup to see its time zone and the current time there.

Yes. 20 US area codes cross a time zone line. Area code 423 in Tennessee is split between Eastern and Central Time, and 208 in Idaho between Mountain and Pacific Time. The lookup shows both clocks for those codes.

No. An area code shows where the number was first issued. People keep their numbers when they move, so someone with a 512 number can live in Seattle. If the timing matters, ask the person where they are.

Federal rules limit telemarketing calls to homes to between 8 a.m. and 9 p.m. in the local time of the person being called (47 CFR 64.1200). Some states set shorter hours. This is general guidance and not legal advice, so check the rules for your state and your type of call.

No. Toll-free codes such as 800, 888, 877, 866, 855, 844 and 833 are not tied to a place. The business that owns the number can be anywhere in the country.