Area code 313
Area code 313 serves Detroit and nearby parts of Michigan, including Dearborn, Livonia and Taylor. It is on Eastern Time, which observes daylight saving time. 679 is an overlay for the same area.
Area code 313 at a glance
| State | Michigan (MI) |
| Main city | Detroit |
| Time zone | Eastern Time |
| UTC offset | UTC−5 in winter, UTC−4 in summer |
| Daylight saving time | Yes |
| Overlay codes | 679 |
Cities in 313
- Detroit
- Dearborn
- Livonia
- Taylor
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 313 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 313 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 313 between |
|---|---|
| Eastern | 8:00 AM to 9:00 PM |
| Central | 7:00 AM to 8:00 PM |
| Mountain | 6:00 AM to 7:00 PM |
| Arizona | 5:00 AM to 6:00 PM |
| Pacific | 5:00 AM to 6:00 PM |
See the time in 313 without leaving your CRM
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Other area codes in Michigan
Questions about 313
What time zone is area code 313?
Area code 313 is on Eastern Time. It observes daylight saving time.
Where is area code 313?
Area code 313 is in Michigan. Its main city is Detroit, and it also covers Dearborn, Livonia and Taylor.
What are the legal hours to call a 313 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 313?
679 covers the same area as 313, so numbers in the same town can have either code.