Quest Diagnostics are open from morning till early evening on weekdays and weekends. It is also open on most federal holidays. Keep in mind that Quest Diagnostics hours may slightly vary across different areas. Nonetheless, most locations strictly conform to the operating hours we are about to discuss below.
What time Does Quest Diagnostics Open & Close on Weekdays?
Most Quest Diagnostics labs and offices open at 7 a.m. and close at 4:30 p.m., Monday through Friday. Please note that the operating hours of some labs and offices slightly vary by location. For example, there are some labs that open from 6 a.m. to 5 p.m. on weekdays. In addition, remember that the operating hours we have discussed above may be slightly adjusted on some federal holidays.
Is Quest Diagnostics Open on Saturday and Sunday?
Majority of Quest Diagnostics labs and offices are open on Saturday from 12 p.m. to 4:30 p.m. While they are usually closed on Sunday. Be aware that weekend operating hours also slightly vary across different centers. For instance, you may find some locations that open from 12 p.m. to 6 p.m. on Saturday. Also, remember that only a handful of locations are open on Saturday.
Quest Diagnostics Hours
|Days||Opening and Closing Time|
|Monday||7 AM – 4:30 PM|
|Tuesday||7 AM – 4:30 PM|
|Wednesday||7 AM – 4:30 PM|
|Thursday||7 AM – 4:30 PM|
|Friday||7 AM – 4:30 PM|
|Saturday||12 PM – 4:30 PM|
Quest Diagnostics Holiday Hours
Quest Diagnostics labs and offices are closed on Christmas Day, Thanksgiving and Easter Sunday. However, most centers will remain open on the rest of the holidays presented below. Bear in mind that there may be some slight modifications during some of these holidays.
|New Year’s Day||Wednesday||Jan 1||Regular Hours|
|Martin Luther King Day||Monday||Jan 18||Regular Hours|
|Presidents’ Day||Monday||Feb 15||Regular Hours|
|Good Friday||Friday||April 2||Regular Hours|
|Memorial Day||Monday||May 31||Regular Hours|
|Independence Day||Sunday||Jul 4||Regular Hours|
|Labor Day||Saturday||May 1||Regular Hours|
|Columbus Day||Monday||Oct 11||Regular Hours|
|Veterans Day||Thursday||Nov 11||Regular Hours|
|Day Before Thanksgiving||Wednesday||Nov 24||Regular Hours|
|Black Friday||Friday||Nov 26||Regular Hours|
|Christmas Eve||Friday||Dec 24||Regular Hours|
|Christmas Day||Saturday||Dec 25||Closed|
|Day After Christmas||Sunday||Dec 26||Regular Hours|