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I wanted a clock that never needed setting. Things escalated

arstechnica.com

31–40 of 180 posts

Re: I wanted a clock that never needed setting. Things escalated

#32

Edit: I was wrong! original post below: > Battery-backed self-setting “atomic” clocks that get their updates via the cosmic ether have been a thing for years and get me most of the way there, but damned if I could find one with a red seven-segment display that I liked (maybe someone else’s search kung-fu is better than mine?) I found this with ~5 minutes of searching. I think it meets your critera: https://www.amazon…

The clock you've linked is not an atomic clock. It has a pre-programmed clock with a battery keeping it going. If that battery dies, you still have to set the time manually.

Re: I wanted a clock that never needed setting. Things escalated

#33
post #11

I’ve had a Phillips “atomic” alarm clock beside my bed for 23 years that just sets based on radio signal and auto restores if the power is lost, to which it has a backup 9v battery. There’s a time zone setting offset slider and a DST slider. I basically touch it twice a year, maybe another if I move time zones. I’ve only had to touch it for DST (never switched time zones). Takes me conservatively 10 seconds to find a…

I was going to mention an Atomic Clock. I use one in an RV and it sets itself even outside of cell phone range. I know it uses a radio signal of some type but I have no idea how it works. It rights itself within a few minutes of time changes, battery loss, or the like.

It's fascinating reading if you're interested in finding out the details: https://en.wikipedia.org/wiki/WWV_(radio_station)

Re: I wanted a clock that never needed setting. Things escalated

#36
post #10

I feel this article's premise too much. That's exactly the sort of clock I wanted to get my mom as a gift. Why is it so dang impossible to find a not trash simple LED clock that's 'large print', 'the right color', and not annoyingly too bright? A deluxe model might include a day of the week bar or dot and a month / day in month number (smaller than the time, mostly people care about the time)

I think too bright would be an issue with any LED display. Even lights on my modem in a different room are a bit much, I turn it off at night.

Re: I wanted a clock that never needed setting. Things escalated

#37
LED segments may be nice, but why not go full out Nixie tube? There are several kits out there, but for the DIY ethic, you can add WWV sync - and even watch the synchronization process - with this fellow's project:

https://www.youtube.com/watch?v=smUwbzA9SEo

Re: I wanted a clock that never needed setting. Things escalated

#38

Edit: I was wrong! original post below: > Battery-backed self-setting “atomic” clocks that get their updates via the cosmic ether have been a thing for years and get me most of the way there, but damned if I could find one with a red seven-segment display that I liked (maybe someone else’s search kung-fu is better than mine?) I found this with ~5 minutes of searching. I think it meets your critera: https://www.amazon…

The clock you've linked is not an atomic clock. It has a pre-programmed clock with a battery keeping it going. If that battery dies, you still have to set the time manually.

Oh you're right! I was tricked by "AccuSet technology automatically sets the correct time when plugged in. No programming, no confusing buttons"

Re: I wanted a clock that never needed setting. Things escalated

#39
>"...but damned if I could find one with a red seven-segment display that I liked..."

Funny but I have one which updates time "via the cosmic ether", has big red 7-seg LEDs and as cherry on top it has laser LED based projector that displays same big red 7 seg digits on whatever surface one points it to - ceiling in my case. I bought it decades ago in RadioShack

Re: I wanted a clock that never needed setting. Things escalated

#40
post #19

It's a clock. Does it really have to have remote updating, a command line interface, an Internet connection, and HomeKit integration? That's too IoT. I have three La Crosse clocks that run off the NIST time signal out of Boulder, CO, and need their AA battery replaced maybe once a year. The real challenge is running such a thing on a small battery for a year. I once made a small clock that displayed "A LITTLE AFTER S…

I feel like if you were gonna overthink this, you could’ve done something really cute and clever. Like an AI that stares at the window and figures out which angle the sun is coming in, then makes a determination on what time it must be. Then while it’s not sunny or can’t figure it out, it has dead reckoning, but it’s constantly looking at angles of shadows that determine if the time has drifted.

It would just start counting
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