quest diagnostics hours image

Quest Diagnostics Hours Of Operation

Have you ever needed to go to Quest Diagnostics for a blood test or other medical procedure, but weren’t sure what their hours of operation are? You’re not alone! A lot of people don’t know when Quest is open, so I’m here to help clear that up. Keep reading for all the information you need on Quest’s hours!

About Quest Diagnostics

Quest Diagnostics Incorporated is an American clinical laboratory company founded in 1967. Founded as a Metropolitan Pathology Laboratory, it eventually became an independent corporation. It is recognized on the Fortune 500 list of U.S companies. It operates through branches in the U.S., Mexico, U.K. and Brazil and collaborates with many hospitals and clinics around the globe. The company offers diagnostic services to various chronic conditions, such as cardiovascular disease, neurological disorders, cancer, and infectious diseases. Quest Labs is also conducting a customer satisfaction survey and offers rewards for participants who gives feedback. Click on the link to know more about Quest Diagnostics survey

Quest Diagnostics Normal Day Hours

In general, the majority of the locations start working from 7:30 AM and Closes around 4 PM in the evening. Check out the opening and closing sessions during regular days i.e. from Monday – Friday. We have listed a generic schedule that most of the locations follow. However, the Specific Store Hours can vary a bit compared with the common timing present below when there is a need for doing so.

DaysOpen HoursClosed Hours
Monday 7:30 AM4 PM
Tuesday 7:30 AM 4 PM
Wednesday 7:30 AM 4 PM
Thursday7:30 AM4 PM
Friday 7:30 AM 4 PM

Quest Diagnostics Saturday & Sunday Hours

In general, Quest is closed on Weekends, unlike on Weekdays. If you are about to visit Quest Diagnostics on Saturdays and Sundays better visit in advance and finish your activities during Weekdays. In some locations, Quest Diagnostic Labs opens on Saturdays for a half day i.e. till 2 PM.

DaysOpen Hours Closed Hours

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 closes on holidays and how late it stays open. Normally, most places change their working days from regular days. In fact, to accommodate customer needs, Quest Diagnostic’s offices open later or close earlier than usual. Know specifics like if Quest lab is open or closed on holidays like Christmas, Thanksgiving, and Easter.

Which Holidays Quest Diagnostics is Open?

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

Which Holidays Quest Diagnostics Close?

Thanksgiving DayClose
Easter SundayClose
Christmas DayClose

Quest Diagnostics Contact Details

  • Address: 500 Plaza Dr, Secaucus, NJ 07094
  • Phone Number: 1 (866) 697-8378
  • Customer Service: 0124 460 8888
  • Website:
  • Customer Service Hours: 7:30 AM to 4 PM from Monday to Friday.

Frequently Asked Questions

Is Quest Diagnostics Open on Christmas day?

No, Quest Diagnostics is closed on Christmas day.

What time does Quest Diagnostics open?

Quest Diagnostics opens at 7:30 AM from Monday Through Thursday and closed on Saturday & Sunday.

Is Quest Diagnostics Open on Sunday?

No, Quest Diagnostics remains closed on Sunday.

What time does Quest Diagnostics close?

On weekdays, Quest Diagnostics closes at 4 p.m., and it is closed entirely on weekends.


Thank you for reading our article on the Quest diagnostics hours of operation. We hope this guide was helpful to you. If you have any other questions or concerns about the Quest Labsfzxdasq hours of operation, please contact us anytime. In case you are looking for more specific hours of operation, you can find the information on the website for your local Quest lab.