Extension : Chrome Clock
Developer : pcki11
Latest Version : 0.5.3
Download : http://pcki11.farx.ru/get.php?f=5
Browser Compatibility : dev release with support for crx extensions

Description :
to set the alarm time, click on the toolstrip. in the first field enter the hour of the alarm time, press Enter to go to the second field and put the number of minutes there. press Enter one more time and the alarm is set. to cancel it at any time, click on the toolstrip.
to set a timer, click on the clock, and click on the "A" button to switch it to "T". it is not so precise now, just waits until current time + timer will come.

Screenshot :

I installed the crx. I see the clock running on the tool bar. I set an alarm time and see a red "!" mark - I think it is - next to it - but what is supposed to happen when the clock reaches the alarm time? I see nothing happening, hear no sound. (Yes, sound is turned on.)

you can see what should happen on the screenshot.
what is your local time and what do you enter in alarm fields?

Strange. It is working now. Earlier neither the screen shot nor the time in the toolbar flashed in red. Thanks for your reply.

@Pcki11, thanks for going through the trouble of posting an actual animated .gif of the result !!!

Bravo

@pjfla
i think i know what is the problem, you are probably trying to use am/pm time. i didnt want to add needless functionality to this plugin, if you want to set an alarm in the afternoon use 24 hour time.

This morning it now longer works. But AM vs PM do seem to be involved.

It was 8:17AM (US East Coast) and when I set the alarm for 8:18 nothing happened.

I also tried setting the alarm time as 20:19 to see if that made a difference; it did not.

However, if I changed by Windows Time to 8:15PM and set the alarm as 20:16 it worked.

But just to make things more complicated, when I changed the Windows time back to 8 AM the toolbar time did not reset; it remained at 20 hours until I exited Chrome and restarted it.

Any suggestions? Thanks.

that is very strange =/
do you have the version from the first post in this thread?.. i have just downloaded it to reproduce your bug, and it worked ok. 3:59am (alarm set to 4:00) - flashing, changed to pm - clock showing 16:00, 4:01pm (alarm set to 16:02) - flashing.
please try to uninstall the extension, download it from the attachment and install, just to make sure we have the same version.

found something. if you change the time forward, then the clock reflects the change, but if you change the time backwards, it doesnt!.. and since this script is working perfectly in IE in both directions, then it is either i am missing something with the Date() object, which is retrieved from windows every 0.5 seconds, or it is a bug in webkit/chrome =/

I uninstalled, downloaded the crx again, and reinstalled. It did work ok at 9:30. I noted that if I set the alarm hour to 09 instead of 9, it does not work. Maybe I had been typing the hour all along as 2 digits but the extension does not like the leading zero.

it is a matter of adding two more checks, i will fix the leading zero bug as soon as i will figure out what to do with the time bug..