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Mainstays Digital Wind-Up Alarm Clocks

Key item features

  • Digital Display: Features a modern LCD display showing the calendar with full weekday, atomic time, and date, with an optional manual setting.
  • Accurate Timekeeping: Automatically updates for Daylight Saving Time (with an on/off option) and utilizes a WWVB radio signal antenna for accurate, self-setting time and date.
  • Temperature Monitoring: Includes an indoor temperature display, adjustable between Fahrenheit and Celsius, for convenient room climate monitoring.
  • Alarm Functionality: Offers a time alarm with a 10-minute snooze feature and a crescendo alarm that gradually increases in volume.
  • Versatile Placement: Designed with a black plastic case surrounding a silver inlay, suitable for both table standing and wall hanging.
  • Portable Power: Operates on batteries (3 AAA alkaline batteries not included), ensuring continued function during power outages and indicating when battery replacement is needed.
  • Time Zone Selection: Provides seven factory-set time zones (Atlantic to Hawaiian) for easy setup, requiring only selection and proper orientation towards the WWVB signal.
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Current price is $20.97
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Customer ratings & reviews

4.3 out of 5 stars
stars264 ratings143 reviews
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Reviews summary

Pros

  • : Clock features easily readable numbers.
  • : Offers good value at this cost.
  • : Easy to read from a distance.

Neutral

  • : Can be quick, but may require technical expertise.

Cons

  • : Struggles to provide sufficient illumination in dark environments.
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Showing 1-3 of 143 reviews

May 12, 2026
tabbycat
5 out of 5 stars review

Verified Purchase

Handy Clock

Good clock that runs on batteries and doesn't need an electric outlet. Has hanging hooks on the back, plus a prop stand to use on a table. Got the clock as a gift for an elderly person who really likes it - has large numbers so the time is easy to read, has day of the week with the full name (not abbreviated ), plus indoor temperature. Also has an alarm clock function, and it has a button on the back to get the atomic time signal for accurate clock time.

Helpful?2PG2YVX687Q842286869
Jan 30, 2026
Dukester
5 out of 5 stars review

Verified Purchase

All I had to do was install 2 AAA batteries, and it set itself up. It keeps good time. Atomic Clocks are great to have. I like the alarm tone. It is a great product to have.

Helpful?2PG2YVX687Q842286869
Nov 10, 2025
Walmart customer
Top Reviewer
5 out of 5 stars review

Verified Purchase

keeping time

Love this clock set it once and forget it until the battery is low, which the first one we got from the story we have only had to replace the battery once. It is so nice not to have to worry about the setting every time DST changes, love knowing what the temperature is in the room. The digits are easy to read even at night with only a nightlight, the instructions were good as I had my daughter do it and she did not seem to have any issues with them.

Helpful?2PG2YVX687Q842286869