DreamSky Alarm Clocks for Bedrooms with Battery Backup, Auto Set Digital Clock with Date and Day of Week, Temperature, USB Port, Auto DST, Dimmer, 12/24H

I spent hours over many days during 6 week sorting through available clocks on Amazon and other sites. Initially I passed this up due to a lower than average review rating. However decided to give it a try and ended up ordering 3 more. Now have a total of five. Will update review if they fail.Have had thee clocks now for 2-3 weeks. Set up was impressive! After the first two arrived, I was so blown away, that I ordered 3 more.After unpacking, I inserted 3 AAA batteries in a couple (and not in others) and plugged in. I did not have to set any time! It set itself automatically on my time zone. That met my most important need. We live where thunderstorms take down our power for a few minutes to a few hours a few times every month, sometimes weekly. Occasionally lose power for a day or more. It drives my husband and I crazy having to reset clocks so frequently.We have a few critical clock needs- large font, ability to dim at night, able to display time during power outages and ability to have the clocks display the correct time automatically when power comes back online.Unbelievable that no one makes such a product! Unless it's battery powered only. So when I finally gave in and looked at "battery" clocks, this one popped up. "Battery only" clocks are too small for our needs as they are mostly designed for travel and when not backlit, are hard to read. Battery clocks just can't put out the wattage needed for a bright, year round display. So I kept searching for a clock that plugs into the wall and had an option for batteries to keep time during power losses.This clock plugs into the wall and works both with and without batteries. When power goes out, if batteries are inserted then the clock face is able to display all readings when the Light/Snooze button is tapped. It displays for about 30 seconds. Very helpful if power goes out in the middle of the night and you are wondering what time it is. It also displays a "low battery" icon when they need to be replaced. We put one in the garage with batteries and another in the guest bedroom. The other 2 are in a family room and game room and they didn't need batteries as we don't use those rooms when we lose power.When power is resumed the clocks all display correct time, no need to reset. Of note, the clocks may have a 1-2 minute variance of displayed time but for us, that isn't an issue. Any clock we manually set, also has that same varience. Should an exact time be needed, we have mobile phones and tablets. The six inch high display, is absolutely perfect! Aging eyes need more space between characters. This clock has a good 1/4" space from all the edges and 1/2" between hours and minutes. The time is displayed 2 inches high on the upper two-thirds of the screen. This thoughtful elevation makes it easier to view than a smaller 2-3" clock when propped up in bed reading or laying down because it's at eye level.The 2" white font is easier on our eyes than our previous 2" red LED clock displays.We keep the Bright setting (5 levels) on high for the all the clocks except for the ones in our bedroom and guest room. Those are kept on Auto Bright which means it self dims to the lowest setting between the hours of 9pm to 7am and then retuns to the high setting. The minor drawback is that when the power goes out (even with batteries inserted) the clocks will default to the highest Bright setting, so the Auto setting needs to reset. The purpose of the batteries seem to be soley the ability to see all the displays (time, temp, humidity, battery level, time zone, day, date, am/pm, moon phase) when the Light/Snooze button is pressed.A huge unexpected plus for us with this clock is the built in Day, Date, Temperature and Humidity displays. Being retired, we are used to minor confusion of the days which are tracked mostly because of medical apts. Seeing the day and date helps us become centered when awakening. Living in FL the temp and humidity are quite useful as well.The clock size is perfect. Not too small to be easily knocked over accidentally or knocked off when cleaning the table top. It's lightweight to pick up when dusting and easy to grasp. The base is firm and keeps the clock on its placed location. The body design doesn't accumulate dust on the back. The power cord is long enough to reach nearby outlets from a table top.While not designed as a "travel clock"' should we have to travel, I would definitely pack one of these in our suitcase! So often we have to unplug hotel clocks due to too much night time brightness, alarms going off in wee morning hours and not displaying the correct time. This clock displays the Time Zone (EST, CST, est.) which is so needed when traveling! Not to mention the temp display which helps with decisions over hotel thermostat adjustments. It's so very difficult to locate and read those wall thermostats without a flashlight and glasses. Another travel plus is having the extra USB at our bedside.Our order for a generator install at this new home has been held up for 5 months due to shortages of propane tanks. However, these clocks will still be very much needed as the generator doesn't kick in until we have a 2-3 min loss of power. (A safety/compatibility issue with the tie in to our electricity provider to ensure its a true power loss and not a flicker situation.) Very pleased to have the correct time displayed regardless of power loss or flicker.My one reservation is if they will hold up over time. A handful of older reviews said they gave out after a few months. If that happens I will update this review.

Great clock, back up power is why I purchased it. Normally powered by USB cord to wall plug adapter. Button cell battery is for memory settings retention in case of total power failure. If wall power fails it continues to operate like a battery powered clock by utilizing the available batteries so the alarm and display continues to function normally. Most back up powered clocks have a back up battery for memory retention only. So when wall power (AC) fails the alarm and display is non functioning until AC power is restored. If your alarm time is set and AC power is off the alarm will not sound off. That is a big plus and that is why I purchased this clock. All alarms and display will work in the event of AC power loss. Set it and forget it even in power outages.

I've been using this clock since Sep 24. I really like it. I have it in my vanity area . Being retired I sometimes lose track of what day it is, so it nice to see that first thing each morning (hey, it's a tough life, but somebody has to do it!).What I like best, though, is that it gets it's time feed from ... wherever. When the power goes off, which it does rather too often, it gets back on time without me having to reset it, like I do the microwave, and the oven, and various other appliances. I can recommend this product.

If you just need a digital clock this is a good option. I don't use the alarm function so i can't speak on it. If you have vision issues might need a larger text one. What I can say is it can synch to the right time automatically but sometimes it is like four minutes ahead so manual setting it is better for accurate time. The temperature setting is most likely for room temperature if it's even reliable in the first place. The only complaint is I wish it was bigger with larger text, Especially the date.

This clock is just what I wanted. The auto setting for night time lower lighting is really nice. I only need the one alarm it has. When it goes off, it starts with a gentle tone then progressively gets louder for a total of two minutes. Also, the clock has battery backup for not only settings, but will also allow the alarm to go off in a power outage. I am very satisfied with this find that meets my needs perfectly.

Ive tried a couple of these and by far this is the best1. It autosets everything2. It goes from really bright to really dim (others I have tried were practically nightlights even on the lowest brightness)3. Its pretty compact I just have a small side table and fits with more than enough room and doesnt take up the rest of the side table

The clock performs as expected. One of the best features is its ability to set the date and time automatically. This ability comes from a signal that is transmitted by the NIST (US) or other entities in your country. This ability has been around for a couple of decades, but this clock replaced one I had for 36 years. Another feature I like is it provides the temperature and relative humidity. Admittedly, these don't improve your quality of sleep, but they do keep you informed about your intimate surroundings. Finally, I really like the ability to adjust the brightness of the display which does contribute to my quality of sleep. For $27 US dollars, I believe you will be pleased with this clock.

Great clock exactly what I wanted.Even greater review of VENDOR. Original clock had a dead SET button. Contacted VENDOR with email address shown and within SIX days I received replacement clock which works perfectly. GREAT CUSTOMER SERVICE DREAMSKY!!!!