Hello, I recently acquired this clock (photos attached), after googling around, i think it is some type of network synced clock.. It has a green plastic cover with a transparent front side, the cover has no buttons at all ( it s not a radio clock). the only input output are those 4 pins in the 4th photo. I think it can be a good project,  maybe box it in wood, but i have no idea how to make it work. can you help :)? thanks

Topic by Kreat0r 3 years ago  |  last reply 3 years ago

Alarm Clock?

Is there a relatively easy way to make an alarm clock?

Topic by kylechu 11 years ago

messing with a clock

For Halloween I want to create a little knock off of the clock from Disney's Haunted Mansion. I have found a great image of the clock face online. How feasible would it be for me to hack a simple electric clock and have it 1) run backwards and 2) run very fast Thanks!!!!

Topic by Purple Chez 2 years ago  |  last reply 2 years ago

catena clock

I saw this online, is it possible to do this with a quartz movement from a craft sore????

Topic by golddigger1559 7 years ago  |  last reply 4 years ago

ATTINY As A Clock?

Will using time library with an Attiny/45/85/84 ( ) create an accurate clock? I keep on seeing people using these external crystal things. Do I need one? Isn't millis pretty dang accurate? How would I sync the clock with real time?

Topic by HavocRC 4 years ago  |  last reply 4 years ago

An interesting clock

Hello! I need a scheme for a fading clock. Please, has any body made something like this?  The idea - based on the fadenes on each number you can tell what time is it.  The GIF is very basic.

Topic by Thevilcins 5 years ago  |  last reply 5 years ago

Clock in a jar

Here's a cool concept made by Oren Hetzroni. It's a clock in a jar where the hands move around the inside of the glass. Reading it is a little tricky, but if you match up the big and little hands with the numbers you can figure it out. Remaking this one is super easy. Just put the movement inside the lid and bend the hands at a right angle so they move around the side. jar via core77

Topic by fungus amungus 9 years ago  |  last reply 9 years ago

Talking Clock

Hi Everybody, I'm new to the forum of inscrutables, but I've been bored at work recently and been thinking of things to brighten the place up. I've come up with an idea, but have very limited technical skills, if somebody could just point me in the right direction so that I could start this project I would be really appreciative and would post up pictures and videos of the final product. Idea: Essentially, I work at a pool where the lifeguards rotate every 15 mins, which they forget to do OFTEN! Me and a few others have decided to make a clock to replace our current one that would, every 15 mins make a noise, or say "rotate" to remind them to rotate on time. It would also be fun if we could have several different voices saying "rotate" of different employees. I'm pretty sure this can be done because I've seen clocks that make bird chirping noises, But I can't figure out how they work. Any help would be awesome, I really want to learn new things, which I think is everybody's reason for being on instructables anyway. Thanks, George

Topic by gkemp1994 6 years ago  |  last reply 6 years ago

Harry Potter Whereabouts Clock

A great Harry Potter project even non-fans will like. Ran across this while looking for interesting clock projects. The author remains anonymous on his blog.  Magic Whereabouts Clock

Topic by Culturespy 8 years ago  |  last reply 8 years ago

How to illuminate a wall-clock with leds and a light sensor ?

I want to illuminate a wall-clock using a light sensor and leds from a 1.5\3.0\9.0 volt batteries.What components i need for a long lasting but simple circuit ?

Question by arikkru 9 years ago  |  last reply 9 years ago

How would I rig an old analog clock to light up LEDs to show the time? Answered

 I was thinking of using the 10mm ultra-brights for the hour mark and the standard 5mm for the minutes. Should I connect them all to a common ground and use the hands as the "hots?" Should I use a plate-type contact; cause I feel that the post-type would interfere with the sweep of the hands. What kind of batteries should I use?

Question by javajunkie1976 8 years ago  |  last reply 8 years ago

Clock mechanisms?and large clock hands?

I'm building a large wall clock using Numbers stuck to wall and bought 10 quartz clock mechanism's but not one can drive or strong enough to  to drive large clock hands,can anyone help ?where can I buy from

Question by 2Y3RXJ82NBEVGGEPCK8FE3 2 years ago  |  last reply 2 years ago

How do I make an arduino into a personal alarm clock?

Dose anyone know how to build a super easy to use alarm clock using an arduino? I am prototyping different types alarm systems and trying to solve one person's specific problem with managing bed time. I welcome any: ideas, suggestions, hunches, guesses, or building plans. Just a few things: the clock has to use an arduino and it has to be portable. The reason why I'm building it myself instead of buying an alarm clock is that it needs to be utterly simple and have personal meaning to the user. I am open to it not having to use an arduino. It should be easy enough for a child 6 years old to use. They should be able to set the time and the alarm on their own.

Topic by hthnc-student 6 years ago  |  last reply 6 years ago

pacman alarmclock???????

Dose any one know how to program a alarmclock so when the alarm gose off, you have to play pack man to shut it off compleatly? i will except any help anyone gives me. thanks- zombeastly

Question by zombeastly 7 years ago  |  last reply 7 years ago

Question about gearing

Hi everyone. I've been a long time lurker, and I love the site. I've learned so much just by coming here. I've just registered to say you have inspired me to take on a project of my own. I've sort of hit a bump in the road, though. I have an idea for a clock. I want to do a steam-punk flavored wall or desktop clock with exposed brass gears and various and sundry bits I have laying around. I want to tack the numbers directly onto the gears and use them instead of hands. So one large gear on the left with the numbers 1-12 in place of an hour hand, one large gear on the right with 00-55 by fives for the minute hand and a gear under the two that counts off the seconds. So, if I can get a motor downgeared to 1 rpm to drive the "second gear" I'd need a 60:1 gear ratio to make the "minute gear" accurate, and then 12:1 off of that to do the "hour gear." I know I can't drive them all directly off each other, because that would make the "Second Gear" tiny and the "Hour Gear" huge. Where I'm stuck, aside from my poor math skills, is how to get the ratios right and size of each intermediate step and number of teeth, etc. I don't know enough to tell if I'm in over my head, but it seems "do-able" from my perspective. I'd appreciate any feedback you all could give, even if it's just a link to a tutorial that will get me started. I'm not on a deadline or anything, I just found the urge to make something cool. I have a bit of a budget if I need to have something custom fabricated, but I'd prefer to do as much of it as I can. I wouldn't mind using off the shelf stuff like bicycle gears or similar, because I could always have them engraved and plated and made to look cool. So, any help or nudges in the right direction would be appreciated. Thanks in advance, and thank you for such a wonderful site/community. Iggy **edited to add*** Of course I'd be delighted to write an instructable about it when It was done. It would only be polite. ;)

Topic by IggyPiggy 8 years ago  |  last reply 8 years ago

CLOCKS!!! how to make a.... very powerful clock?

Hey, I'm new on here but realllyyy need some help in this as I have a limited technological background. Basically I have a project in which have two digital displays, each one displaying either the time, in minutes or the hour (two digits per display). Now what I want to do with these is effectively attach these on to the hands of an analogue clock, so that when the hands spin round, the time is displayed. For example when the minutes hand is at the quarter past mark, the display will read 15 and when the hour hand is at the bottom the other display will read 06. So I have the designs ready for this clock (including counterweights and whatnot) but I just need a very powerful clock movement, or gearing system that will enable me to turn a couple of heavy clock hands, I have seen online you can but high torque movements which at the moment is my best bet, but i cant imagine it will work very well to be honest. I would really appreciate any response or something to point in the right direction as I'm very open minded and if the issue is solved, I will be sure to put up instructions on how this clock was made. Thanks for reading. Josh

Question by joshblee23 8 years ago  |  last reply 8 years ago

How was this clock made?

Hi everyone, I found this clock , the D/A clock by Alvin Aronson, and I am wondering if anyone knows how to make this clock or if anyone knows how he made it?;=1 cheers

Topic by ehfo 7 years ago

The clock that erases itself

This clock has an eraser in the hour hand so it can erase the marks on the face of the clock as it goes along. Pretty good way of clearing the way for more events, but you might want to write down those notes somewhere else as well. Dry Erase Clock

Topic by fungus amungus 9 years ago  |  last reply 9 years ago

Plasma alarm clock?

I am thinking it might be fun to hack the speaker output on a digital alarm clock to somekind of plasma device that uses a flyback transformer. Something along the lines of a lightning alarm clock that was released a few years back.

Topic by argos090 7 years ago  |  last reply 7 years ago

Etch-a-Sketch clock

The Etch-a-Sketch gets a cool new hack with this clock that automatically draws in the time every minute and shakes it up in between. Slick.via Neatorama

Topic by fungus amungus 11 years ago  |  last reply 9 years ago

Clock Projector to Projector? Answered

Could I like put an input (???) for like an iPod in and watch non-time?

Question by Warlrosity 9 years ago  |  last reply 8 years ago

clock knits hat

Hi Everyone :0) I have seen a clock that knits. Here is the artist explaining how it works  Does anyone know where it can be purchased, or perhaps how to make another one without copying her amazing and unique design?

Topic by porcupinemamma 6 years ago  |  last reply 6 years ago

LED display clock

Does anyone know how to power 24 LEDs. I wish to make a clock that shows hours and five minuite intervals in LEDs for my A Level Electronics project. The LED's could be split into 12 on two circuits if that is easier. Has anyone tried this before or can help me?

Question by gemmak 9 years ago  |  last reply 9 years ago

Help With Digital Clock !

It has been very long I am trying to make a layout for Digital clock, but I FAIL. I made the schematic but For Layout I Fail ! ! I fail in [b]Component Placing[/b] ! ! ! ! Please Can anybody make a layout for me software used : Eagle v5.3.0

Topic by ashirwad 7 years ago  |  last reply 7 years ago

The new "face" of clocks.

Two men in their bedroom, with time on their hands... Building clocks. An elegant, simple new design of clock is being produced by two entrepreneurs in a bedroom. The spiral face rotates, clockwise, every 12 hours, slowly winding a small ball up the coiled face.  At the twelfth hour, the ball drops into the centre of the face and back to the beginning. The clock is an art piece, costing hundred of pounds, but I bet you could build your own version from off-the-shelf parts or a recycled clock. After all, the prototype was knocked together from beer cans and gaffa tape... BBC video article. Aspiral website. Advertising video: Oddly philosophical video:

Topic by Kiteman 9 years ago  |  last reply 9 years ago

retrofit nixie clock

I've always wanted a nixie clock but am new at electronics. I was thinking, couldn't you take a regular clock that uses a 7 digit display and convert that to run nixies? For example, if you want to display an 8 you would have AND logic gates on all the digit leads so when they all are on it activates a relay (or switch thing) that causes complete the circuit from a high voltage souce the nixie tube?

Topic by NetReaper 10 years ago  |  last reply 8 years ago

World Clock Project

The World Clock Project takes a creative look at time. By taking clocks from around the world they're mixing time-zones and still keeping a relative view. It's thought provocative to think about time and how important it is to the human experience. Time is our most valuable currency, it's really the only thing we have. So it's interesting to see how important keeping track of it has been, we've been using Obelisks as sundials for over 5000 years, some of the most ancient artifacts from egypt were built to keep track of time.It's good to see that The World Clock Project is keeping time on our minds. Give it a shot, upload your clock and let us know where it is[http://world clock project upload]-bg

Topic by lamedust 10 years ago

Shock alarm clock

Hi,  I want to build a Alarm that will shock you when the clock hits a certain time i am new to this could someone help me out ?!

Topic by josephwilmott2 1 year ago  |  last reply 1 year ago

Hacking An Alarm Clock

My sister (yes, the one for whom I made earrings) wants me to modify an alarm clock to run a small electronic device when it goes off. Preliminary research has given me two methods:1) A digital clock with a 555 timer circuitIn this setup, a 555 timer circuit is used to translate the signal to an alarm speaker/piezo disk into a relay. When the clock goes off, the relay clicks, and any electrical device that is run through the relay has power.2) An analog clock with a transistor amplifierIn this version, the analog clock seems to just have a straight DC output to the alarm. The transistor is used to amplify the DC to drive the motor of a fire bell.Which of these would be easier to implement? The device I am supposed to use runs off of 3VDC, so I was just going to run the power line through the relay or through the transformer.

Topic by CameronSS 11 years ago  |  last reply 10 years ago

A novel lunar clock

The Large Hadron Collider is so big that tidal effects cause its beam paths to distort, as the machinery bends.

Topic by steveastrouk 6 years ago  |  last reply 6 years ago

Binary clock, anyone?

Hi, anyone knows how to do something like:

Topic by leech 12 years ago  |  last reply 12 years ago

YY:DDD:HH:MM:SS Countup Clock

I was looking to make a countup clock that would be able to count off time in seconds, minutes, hours, days, and years using seven segment displays. I have yet to be able to find an instructable like this. I imagine it would be very similar to a normal clock; however I do not know enough about electronics to be able to modify the standard clock instructables to be able to make my own.  The only way I know to do this with the knowledge I currently have is to make a mini PC and that would be cost prohibitive as well as overpowered.   The idea came up because I have my one year anniversary approaching and I figured it would be neat to have a clock whose sole purpose is to give an exact time count of being married.  I played around with the idea of having the clock play a song or display something any time a new year was added, but I figured for now to just stick to the basics.   If anyone knows of an instructable that fits this idea or is willing to make one/point me in the right direction here, that would be fantastic. 

Topic by NELHAOTEC 3 years ago  |  last reply 2 years ago

strong clock mech..

Hi, im building a clock for my AS level design and technology course. one of my ideas is to have a clock mechansism in the base, hidden, and have a gear system turning the hands above it. below is a small and very undetailed picture i came up with just now. tp show you. what i need is to find a very strong clock mechanism. one that will have enough power to drive the gears. if anyone can help me with finding one i would very much appreciate your help.

Topic by Olliethegod 12 years ago  |  last reply 12 years ago

How to mend a clock?

Hi. We love clockwork, steampunk etc and keep buying clocks and watches that arent working. The plan is to deconstruct them to make some other things but now we have several clocks (early 20th century) that we think could be got to work. However we dont know what to do. Does anyone know an online place that tells you (for free) how to do this? I know there are loads of dvds and books but am hoping we wont have to go down that route. thanks

Topic by greensteam 10 years ago  |  last reply 10 years ago

alarm clock help?

Hey, i want to make an alarm clock that i can either wear or have it wireless. other info: headphones would be ok if the device is small enough i can stick it in a headband or somethong i dont really have any money to spend on on parts so re-purposed stuff is great no aduino please! (i dont have one) any advise would be great! thanx

Question by cheesewzrd 8 years ago  |  last reply 8 years ago

Clock Powah! (power)

Clock idea = out!any other idea for a higher torque clock-like motorhere's a very very brief photo of my idea. The light gray is the rotatingfood area and would be push by the dark gray (white out!) motor. the yellowthing is a hatch. It was just for me to write my thoughts down and I know the hand will run into the wall and everything. The sloped rectangleis a ramp on the inside so the food turbine will move spilling down theramp into the bowl. Also the big hand is actually the hour hand, I drewa small minute hand to show it was a clock, This has it worked so it willfeed every 12 hours and needs to be refilled every day.I don't really need any critique just answers for now '"

Topic by Chicken2209 10 years ago  |  last reply 10 years ago

DIY clock panel

HI, I work for a church and we have a major problem of losing track of time, we've been looking at buying a large digital timer, but there expensive. Does anyone know how to build a panel that is pretty large (1'x3') that can be controlled, or start/stop/reset?

Topic by drew240 8 years ago  |  last reply 8 years ago

Alarm clock mod

I took apart my alarm clock and took out the speaker and put in a headphone jack. Now it can wake me up and i was wondering if someone could help me figure out what the specific alarm electric thing looks like. I want it to be able to set off a motor that pulls off my sheets. I know absolutely nothing about circuit boards and things like that. any info would help. thanks

Topic by pizzadeliverykid 8 years ago  |  last reply 8 years ago

Customized Alarm Clock

What I want to do is this, -get rid of my alarms stupid sounds -insert a custom sound -do it cheap -and make it small enough I can still put it in a custom casing (the casing is the easy part, I'll have no issue making that.) I have looked around and have seen several ways to hack alarm clocks but I can't see how any of them would help me out with this particular problem. The way I see it I will probably need to rewire the clock so that it sends power to an external device when the speakers are supposed to go off. The only other way I can think of is having a small computer with one of those pre-programmed clocks but that would be more expensive than buying the sound recording clocks and a bigger pain to fit into the casing. I also think I heard someone talk about making homemade circuits, I don't know if that would work at all but it's worth mentioning. I would like to be able to find easy to follow instructions that are CLEAR and not super complicated. Any help would be appreciated! BTW, yes, I have looked at the sound recording clocks online and they all look like crap or are way to expensive to bother with. 

Topic by cward5 7 years ago

Rolling Ball clock

I was wondering if anyone on these forums think they could make one of these. It is such a interesting time piece and i think it would look great in any modern living room. I want to make one but the kits are kind of exxpnesive and its more fun if you can make it on your own. Here is some pictures.  Enjoy and thanks for your input :). Toby Mac

Topic by tobymac987 8 years ago  |  last reply 8 years ago

Alternative clock-Mechanical

I need to build a device for a competition that can measure time acurate to the tenth of a second, but from its starting position it must be no more than 30cm in dimension, but can exceed that once it begins.  Even if you know of something that can do seconds that would be fantastic.  If you have any ideas or places to find plans please do tell.  IT CANNOT USE ELECTRICITY

Topic by danielsb7676 9 years ago

spiral clock hands

I want to make a desk clock as a small project for myself. What I am looking to create is a slim clock with a spiral hour hand. The time would be told by graduated marks on the back-plate i.e. as the hour hand turns, the spiral increases and the correct hour is reached by the spiral, hard to explain, can't upload a photo as instructable server maintenance is under-way, hopefully I'll be able to upload the brief sketch I did in paint which might help!! What I am looking for is suggestions on a material which could be used for the hand, it needs to be thin so as to make it as easy as possible to tell the time and also strong enough not to distort under its own weight. Haven't decided whether it's going to be a normally incrementing spiral or a Fibonacci spiral (or similar logarithmic spiral)

Question by johnnie98765 4 years ago  |  last reply 4 years ago

Digital clock hack

I've been trying to do more DIY stuff recently, so I figured I would start out with an easy project. Basically, I was wondering if it is possible to modify a standard digital clock so it could display different messages through an lcd display based on the current time. Since most clocks have an alarm feature, I thought this would be pretty easy to do, but then again I could be completely wrong. I know how to solder and such, so I shouldn't have too many technical problems if I get a push in the right direction. Also, I know how to do a bit of coding, and I'm good at adapting so I'm sure I could find out some way to make this work. Any help is much appreciated.

Topic by brickzima 10 years ago  |  last reply 10 years ago

"In Time" movie clock

Hi! I dont know if here its a good place to talk about this idea i come. First of all I just saw "In Time" movie, that from Justin Timberlake you know, and I was thinking about the green clock in their arms. I thought that I can do it with a projector or somekind of stuff like that..( like a PIPBOY 3000 from fallout, projectin right on my arm). But Imnot happy with that way so Im here asking for help... Would you know how to do a subcutaneous clock or maybe some transparent film around arm with leds, i dont really know. Brainstorming here please! Note: Sorry for my english, Im not a native english speaker and thanks for your time reading!

Topic by erk1one 7 years ago  |  last reply 7 years ago

Alternative Clock-Mechanical

I need to build a device for a competition that can measure time acurate to the tenth of a second, but from its starting position it must be no more than 30cm in dimension, but can exceed that once it begins.  Even if you know of something that can do seconds that would be fantastic.  If you have any ideas or places to find plans please do tell.  IT CANNOT USE ELECTRICITY

Topic by danielsb7676 9 years ago  |  last reply 9 years ago

Making a chain clock...?

I asked recently about making one of these here Re-design gave me some useful advice as to what to use, sadly though, I have no idea where to begin. I know what a stepper motor does, but as far as to what stepper motor to use, where to get one, how to use/program a controller, how to power the motor, etc I have no idea. If somebody could give me some clues, or just point me towards another instructable that explains any of this I would be most grateful. Thanks for the help, Cook$

Question by cook$ 9 years ago  |  last reply 9 years ago

100m race clock

I was just wondering I anyone has ever seen a rig that you could use at home, during exercise, to do precise measurement of the time it takes to run 100m (eg.)? It's a little awkward to do with a stop watch in your hand and there is lots of room for error. You would need a beep to tell you that time has started, and some way to stop the time once you have reached the desired distance. thanks Alan

Topic by alanrb 11 years ago  |  last reply 11 years ago

Aside from clocks, watches, stores, and the internet, where is a common place to find tiny metal gears? Answered

Im looking for metal gears around the size of a quarter. anybody know where i can find some?

Question by TimTheScarecrow 9 years ago  |  last reply 9 years ago

If you increase the voltage to a clock, will the clock tick faster? Answered

Pretty much that, will it tick faster, slower(?), backwards(!), blow the clock, do nothing, make tim-tams?

Question by munchman 10 years ago  |  last reply 6 years ago