Area code 904
Area code 904 serves Jacksonville and nearby parts of Florida, including St. Augustine, Fernandina Beach and Orange Park. It is on Eastern Time, which observes daylight saving time. 324 is an overlay for the same area.
Area code 904 at a glance
| State | Florida (FL) |
| Main city | Jacksonville |
| Time zone | Eastern Time |
| UTC offset | UTC−5 in winter, UTC−4 in summer |
| Daylight saving time | Yes |
| Overlay codes | 324 |
Cities in 904
- Jacksonville
- St. Augustine
- Fernandina Beach
- Orange Park
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 904 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Florida law is stricter and ends the window at 8 PM. Here is that window for a 904 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 904 between |
|---|---|
| Eastern | 8:00 AM to 8:00 PM |
| Central | 7:00 AM to 7:00 PM |
| Mountain | 6:00 AM to 6:00 PM |
| Arizona | 5:00 AM to 5:00 PM |
| Pacific | 5:00 AM to 5:00 PM |
See the time in 904 without leaving your CRM
Parse is a free Chrome extension that shows the local time and weather beside every phone number on the page.
Other area codes in Florida
Questions about 904
What time zone is area code 904?
Area code 904 is on Eastern Time. It observes daylight saving time.
Where is area code 904?
Area code 904 is in Florida. Its main city is Jacksonville, and it also covers St. Augustine, Fernandina Beach and Orange Park.
What are the legal hours to call a 904 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 8 PM under Florida law in the called person’s local time. Personal and informational calls are not limited by these hours.
What area codes overlay 904?
324 covers the same area as 904, so numbers in the same town can have either code.