The quickest way to set the time

To set the time on a Samsung microwave, press the Clock button once, enter the time using the number pad, then press Clock again to confirm. The display will show the time in either 12-hour or 24-hour format depending on your model's settings.

Most Samsung microwaves use this same basic sequence, though the exact button label and location varies slightly between models. If your microwave does not have a dedicated Clock button, look for a button labeled Time, Set, or Menu — your owner's manual will show which one controls the clock function.

Key Takeaways

  • Press Clock once, type the time using the number pad, then press Clock again to set the time on most Samsung models.
  • If your microwave is in 24-hour mode and you want 12-hour format (or vice versa), you will need to change the time format in the settings menu first.
  • Holding down the Clock button for three to five seconds usually opens the settings menu where you can switch between 12-hour and 24-hour time.
  • If the time does not stay set after you close the door or unplug the unit, the backup battery may be dead and needs replacement.

Finding the Clock button on your model

Samsung microwave control panels vary by model year and size. On most countertop models, the Clock button sits in the top row of the keypad, often to the left or center. On over-the-range models, it is usually in the same position but the panel may be smaller and buttons more tightly spaced.

If you cannot locate a Clock button, check the owner's manual for your specific model number — you can find this on a sticker inside the microwave door or on the back of the unit. The manual will show you the exact button layout and tell you which button controls time setting. If you no longer have the manual, Samsung's website allows you to search by model number and read a PDF version.

Entering the time correctly

After pressing Clock, the display will show a blinking cursor or the word "Clock" to signal that the microwave is ready for input. Type the time using the number pad. For a 12-hour microwave set to AM, enter the time as it appears on a clock — for example, 8:30 becomes 830. For 24-hour format, use military time: 8:30 PM becomes 2030.

Do not press any other buttons while entering the time. If you make a mistake, press the Clear or Cancel button to start over, then press Clock again. Once you have typed the correct time, press Clock a second time to lock it in. The display should stop blinking and show the time steadily.

Switching between 12-hour and 24-hour time

Samsung microwaves ship in 12-hour format by default, but you can change this if you prefer 24-hour (military) time. To access the time format setting, hold down the Clock button for three to five seconds. The display will show a menu with options including time format, beep volume, or other settings depending on your model.

Use the number pad or arrow buttons to navigate to the time format option, then press the button indicated in your manual to toggle between 12-hour and 24-hour. Once you have made your choice, press Clock or the confirmation button to save the change. The microwave will return to the clock display with the new format active.

What to do if the time will not stay set

If you set the time correctly but it disappears or resets to 12:00 after you close the door or unplug the microwave, the backup battery is likely dead or missing. This battery is a small coin-cell or AA/AAA battery located inside the microwave, usually near the control board, and it keeps the clock running during power outages.

To replace it, unplug the microwave from the wall outlet and wait five minutes. Open the microwave door and look for a panel or cover on the inside wall or ceiling — this may require removing a few screws. Locate the battery (your manual will show you where), note its size and type, and replace it with a new one of the same specification. Close the panel, plug the microwave back in, and set the time again. The time should now persist even after power loss.

If you are not comfortable opening the microwave yourself, a Samsung service technician can replace the battery for you. This is a straightforward repair and usually costs less than a service call for a major malfunction.

Troubleshooting common time-setting problems

If the display shows dashes or will not accept your input when you press Clock, the control board may have frozen. Unplug the microwave for 30 seconds, then plug it back in and try again. This resets the electronics without erasing any saved settings.

If the Clock button does nothing at all, make sure you are pressing it firmly and holding it for a full second. Some Samsung models require a deliberate press rather than a light tap. If the button feels stuck or does not click, debris may be blocking it — gently clean around the button edges with a dry cloth and try again.

If the time displays but the colon between hours and minutes does not blink or flash, the display itself may have a minor fault, but the clock is still working correctly. This does not affect the microwave's ability to keep time or run cooking cycles.

Frequently Asked Questions

Do I have to set the time every time I use the microwave?

No. Once you set the time, the microwave keeps it running continuously, even when the unit is not cooking. You only need to reset the time after a power outage or if you change the time format.

What if my Samsung microwave has a touchscreen instead of buttons?

Touchscreen models work the same way: tap the Clock icon on the display, enter the time using the on-screen number pad, then tap Clock or Confirm to save. The exact wording and layout depend on your model, so check your manual if the icons are not clear.

Can I set the microwave to display time in a different format, like 24-hour time?

Yes. Hold the Clock button for three to five seconds to enter the settings menu, find the time format option, and toggle it to 24-hour mode. The change takes effect when ready and will remain until you change it again.

Why does the time reset to 12:00 when I unplug the microwave?

The backup battery inside the microwave has died or is missing. This battery keeps the clock running during power outages. You can replace it yourself if you are comfortable opening the unit, or contact a Samsung technician to do it for you.

Is there a way to set the time without using the Clock button?

On most Samsung models, no — the Clock button is the only way to set the time. Some newer models with touchscreens may allow you to access the clock through a menu, but the Clock button or icon is still the standard method.