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Quest Diagnostics Weekday, Weekend & Holiday Hours

Quest Diagnostics offers inpatient assessments and laboratory tests to its clients. Clients can choose the Quest Diagnostics Company, which provides the best diagnostic services. To ensure that you do not miss an opening or closing time, check out Quest Diagnostics Hours in advance instead of going all the way and coming sadly, seeing a closed board. Furthermore, you can check Opening and Closing Timings of Quest Diagnostics during regular days and holidays.

About Quest Diagnostics

Quest Diagnostics Incorporated is an American clinical laboratory that was founded in 1967. The company began as a metropolitan pathology laboratory and later became independent. They list quest among the Fortune 500 companies and operate in the United States, Mexico, Great Britain and Brazil. In collaboration with many hospitals and clinics across the globe, Quest Diagnostics offers diagnostic services to cardiovascular disease, neurological disorders and cancer; they also collaborate with infectious disease experts. Moreover, get a chance to win Quest Diagnostics Coupon for participating in its Quest Diagnostics Feedback Survey.

Quest Diagnostics Hours

In general, the bulk of the outlets begin operations at 7:30 AM and end operations at around 4 PM. View Quest Diagnostics’ opening and closing sessions during regular business hours, from Monday through Friday. It provided a general timetable that most venues adhere below. However, when necessary, the Specific Store Hours may differ somewhat from the regular timing shown below.

Quest Diagnostics Hours on WeekdaysQuest Diagnostics Opening HoursQuest Diagnostics Closing Hours
Monday7:30 AM4:00 PM
Tuesday7:30 AM4:00 PM
Wednesday7:30 AM4:00 PM
Thursday7:30 AM4:00 PM
Friday7:30 AM4:00 PM

Quest Diagnostics Saturday, Sunday Hours

Contrary to weekdays, Quest Diagnostics typically closes on the weekends. You should plan ahead and complete your tasks during the weekdays if you are going to Quest Diagnostics on Saturdays and Sundays. In some areas, Quest Diagnostics is open on Saturdays from noon until two.

Quest Diagnostics Saturday HoursClosedClosed
Quest Diagnostics Sunday HoursClosedClosed
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Quest Diagnostics Holiday Hours

When does Quest Diagnostics open and close? It holds many holidays for which it decides to shut its doors. Find out what time Quest Diagnostics close on holidays and how late it stays open. Typically, most places change their working days from regular days. In fact, to accommodate customer needs, Quest Diagnostics locations open later or close earlier than usual. No specifics like if Quest Diagnostics are open or closed on holidays like Christmas, Thanksgiving, and Easter.

Valentine’s DayOpen
New Year DayOpen
Good FridayOpen
Memorial DayOpen
Presidents DayOpen
Labor DayOpen
Easter MondayOpen
Easter SundayClosed
Halloween DayOpen
Father’s DayOpen
Independence DayOpen
Martin Luther King, Jr. DayOpen
Thanksgiving DayClosed
Veterans DayOpen
New Year’s EveOpen
Christmas DayClosed
Columbus DayOpen

Frequently Asked Questions

What time does Quest Diagnostics open?

Monday through Thursday, 7:30 AM is the opening time for Quest Diagnostics. Saturday and Sunday are off-limits.

What is Quest Diagnostics Thanksgiving Hours?

Thanksgiving Day is a legal holiday in the United States. However, in accordance with the official Quest holiday hours, stores will change their operating hours on Thanksgiving Eve in comparison to ordinary days.

Is Quest Diagnostics Open on Christmas Day?

No, Christmas Day is a holiday at Quest Diagnostics. For further information, see the Quest Diagnostics holiday schedule above.


Thank you for reading our article on Quest diagnostics hours of operation. We hope this guide was helpful to you. If you have any other questions or concerns about the Quest Labs hours of operation, please don’t hesitate to contact us. You can also find more specific information about your local quest lab’s hours of operation on their Quest Diagnostics website.