You know what day your surgery is happening. You may have been preparing for it for weeks. But somehow, you still don’t know exactly what time you need to be there.
That can feel surprisingly unsettling — especially when you’re trying to arrange transportation, childcare, work, fasting, or help at home.
It’s common for the exact surgery time to be confirmed relatively close to the procedure. Operating room schedules depend on multiple patients, procedures, surgeons, staff, equipment, and emergencies, so facilities may wait to finalize the schedule until they have the information they need.
Your surgery date and your exact surgery time aren't always finalized at the same time.
Hospitals and surgery centers have to coordinate operating rooms, surgeons, anesthesia teams, nurses, equipment, and other resources across many procedures.
The schedule may also need to account for factors such as:
Because of those moving pieces, the facility may wait until closer to surgery to give you a specific arrival time.
This varies by facility.
Some patients receive a surgery or arrival time well in advance. Others are told to expect a call or message closer to the procedure.
Your preoperative instructions should explain when and how you will receive your final timing information.
If that expected time has passed and you haven't heard anything, contact your surgeon's office or surgical facility rather than assuming your surgery has been canceled.
Usually not.
Patients generally need to arrive before the planned start of surgery so there is enough time to complete the steps that happen beforehand.
That can include:
So if you're told to arrive at 6:00 a.m., that doesn't necessarily mean your operation begins at 6:00 a.m.
For a closer look at what happens once you get there, see What Happens After I Check In for Surgery?
Even after you receive a scheduled time, it may change.
An earlier procedure may take more or less time than expected. An emergency case may need an operating room. Staffing, equipment, or patient needs can also affect the schedule.
That doesn't necessarily mean there is a problem with your surgery.
If your procedure itself is delayed after you arrive, Why Was My Surgery Delayed? explains some of the common reasons and what you can do while you're waiting.
The uncertainty can make practical planning difficult.
If possible, make the parts of your plan that don't depend on an exact hour first. Confirm who will drive you, who can help with children or other responsibilities, and what you'll need at home afterward.
When timing matters — particularly for transportation or caregiver availability — tell your surgical team. They may not be able to give you an exact time early, but they can explain when you should expect to know more.
Don't choose your own fasting or medication schedule based on when you think surgery will happen. Follow the specific instructions from your surgical team.
Follow the fasting instructions provided by your surgical or anesthesia team.
Don't try to calculate your own fasting window from an estimated procedure time. Different facilities and procedures may use different instructions, and some patients receive specific directions about clear liquids or medications.
If your instructions depend on a surgery time you haven't received — or you're unsure when you're supposed to stop eating or drinking — contact the surgical team for clarification.
See When Should I Stop Eating and Drinking Before Surgery? for more context on why these instructions matter.
First, check the instructions you received from your surgeon or facility. They may tell you when to expect your final arrival time and whether it will come by phone, text, patient portal, or another method.
If the expected notification window has passed, call the surgeon's office or surgical facility.
You can ask:
You don't need to solve an unclear surgical schedule yourself. When instructions are missing or don't make sense, ask the team responsible for your surgery.
Once your arrival time is confirmed, use it to finish the practical details of your surgery-day plan.
Double-check your transportation, when you need to leave home, what you're bringing, and any instructions you've received about eating, drinking, medications, or arrival.
For the bigger picture, What to Expect on Surgery Day walks through what generally happens from arrival through recovery.
Preparing for surgery? Get the free SurgiNav Surgery Prep Checklist to keep track of the important details before surgery, from what to bring to what to confirm ahead of time.
Get the Free Surgery Prep Checklist →
Not knowing your exact surgery time can make an already uncertain day harder to plan, but it's common for operating room schedules to be finalized relatively close to surgery.
Your surgery date, arrival time, and actual procedure start time may also be different things.
Follow the communication and preparation instructions from your surgical team rather than trying to work backward from an estimated time. If you haven't received your timing information when you were told to expect it, contact the surgeon's office or surgical facility and ask what you should do next.
Preparing for surgery can feel overwhelming, but you don't have to remember every detail on your own. Download the free SurgiNav Surgery Prep Checklist to stay organized, avoid common mistakes, and feel more confident before surgery day.
Download the Free Surgery Prep ChecklistThis article provides general educational information and is not a substitute for medical advice. Always follow the instructions provided by your healthcare team.
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Educational information only. Always follow your surgeon's instructions.