Finding and Using the Clock Button

The clock on a Samsung microwave is set using the Clock button, which is usually located on the control panel near the display. On most Samsung models, pressing this button once puts the microwave into clock-setting mode — the display will show the current time and may flash or highlight to signal you are in edit mode.

Once you press Clock, you will see the time displayed. Some models show the time in 12-hour format (with AM or PM), while others use 24-hour format. The display will prompt you to enter the new time, and you will use the number pad to input the hours and minutes.

Key Takeaways

  • Press the Clock button on your Samsung microwave's control panel to enter clock-setting mode.
  • Use the number pad to enter the time in the format your microwave displays (12-hour or 24-hour).
  • Press Clock or Start to confirm the new time and exit setting mode.
  • If your microwave has a demo or test mode active, the clock may not save — check your manual for how to disable it.
  • Unplugging the microwave or a power outage will reset the clock to 12:00 or 0:00 on most Samsung models.

Entering the Time on Your Samsung Microwave

After pressing Clock, the display is ready for input. Type the time using the number buttons on the keypad. For example, if you want to set the time to 2:30 PM, you would press 2, 3, 0 in sequence. Some Samsung models require you to enter all four digits (the hour and the minutes) before confirming.

On 12-hour format models, you may see a button labeled AM/PM or a similar toggle. Press this button after entering the time if you need to switch between morning and afternoon. Once the correct time is displayed, press the Clock button again or press Start to save the new time and exit the setting mode.

What Happens If Your Clock Resets

Samsung microwaves lose their clock setting whenever power is interrupted — whether from unplugging the unit, a power outage, or a tripped circuit breaker. When you restore power, the display will show 12:00 (in 12-hour mode) or 0:00 (in 24-hour mode), and you will need to reset the clock using the same Clock button process.

If your microwave is new or has not been used in a while, the clock may also default to 12:00. This is normal and does not indicate a problem with the unit.

Demo Mode and Why Your Clock Won't Save

Some Samsung microwaves arrive from the factory in demo mode, a setting designed for retail display. When demo mode is active, the microwave will not save the clock time — it will reset every time you close the door or after a few minutes of inactivity. The display may also show a demo banner or the clock may blink continuously.

To turn off demo mode, look in your user manual for the specific key combination — it often involves holding down a button like Delay Start or a similar control for several seconds. The exact steps vary by model number. Once demo mode is off, the clock will save normally and persist even after you close the door.

Using the 12-Hour vs. 24-Hour Clock Format

Most Samsung microwaves sold in North America default to 12-hour format with AM and PM indicators. Some models allow you to switch to 24-hour format (also called military time), where 1:00 PM becomes 13:00. Check your user manual to see whether your model supports this option and how to change it.

If you prefer 24-hour format, the process usually involves entering a settings menu separate from the Clock button — often accessed by holding down a specific button or pressing a Menu or Settings button. Your manual will have the exact steps for your model number.

Troubleshooting When the Clock Won't Change

If you press Clock and nothing happens, or if the time you enter does not save, check whether the microwave is in demo mode first (see the section above). If demo mode is off and the clock still will not change, try unplugging the microwave for 30 seconds and plugging it back in, then attempt to set the clock again.

If the display is completely dark or unresponsive, the issue may be a tripped circuit breaker or a blown fuse in the outlet. Test the outlet with another appliance (like a lamp) to confirm it has power. If the outlet works but the microwave does not, the microwave itself may need service from a technician.

Finding Your Samsung Microwave's Model Number

If you need to look up the exact clock-setting steps for your unit, you will need the model number. On Samsung microwaves, this is usually printed on a label inside the unit — open the door and look on the left or right wall of the interior, or check the back of the microwave. The model number typically starts with "ME" or "MG" followed by numbers.

Once you have the model number, you can search Samsung's support website or your user manual (often available as a PDF read) to find the exact button sequence and any special settings for your specific model.

Frequently Asked Questions

Why does my Samsung microwave clock reset every time I close the door?

Your microwave is likely in demo mode, a factory setting used for retail display. When demo mode is on, the clock does not save. Look in your manual for the key combination to turn off demo mode — it usually involves holding a button for several seconds. Once demo mode is off, the clock will stay set.

Can I set the clock to 24-hour time instead of 12-hour?

Some Samsung models support 24-hour format, but not all. Check your user manual for your specific model number to see whether this option is available and how to enable it. The process usually involves a settings menu separate from the Clock button.

What if I lost my manual and don't know how to set the clock?

Search for your model number (found on a label inside the microwave door or on the back) on Samsung's support website. You can read the manual as a PDF, which will have the exact steps for your unit. If you cannot find the model number, contact Samsung customer service with a photo of the control panel.

Does the microwave need to be plugged in to keep the clock set?

Yes. Samsung microwaves require continuous power to maintain the clock setting. Any interruption — unplugging, a power outage, or a tripped breaker — will reset the clock to 12:00 or 0:00. You will need to set it again after power is restored.

Is there a backup battery for the clock if the power goes out?

Most Samsung microwaves do not have a backup battery for the clock. The time is stored in the microwave's memory only while it has power. If you want the time to persist during outages, you would need a microwave model with a battery backup feature, which is uncommon in this product category.