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2007-03-22

OSX Alarm Clock

Stuck away from home with a dead mobile phone battery, I needed an alarm clock—no sign of it in Date and Time.

The solution: use iCal on the MacBook. Set an event at the time you want the alarm. Set up an alarm action to open a suitably noisy audio file (which will open with iTunes if you have the default setup).

Make sure you set the alarm to go off on date (not 15 minutes beforehand as I first did). Make sure the volume is set high, headphones removed. Leave the lid open and, preferably, power connected. The alarm will wake the laptop from sleep, and play your song.

Update 2009-02-15 In Leopard 10.5.6 the alarm does not wake your computer from sleep :-( In System Preferences >> Energy Saver >> Schedule, set your computer to wake a couple of minutes before the alarm goes off.

If you subscribe to any external calendars, set iCal offline — otherwise any alerts complaining that some calendar is unreachable will prevent the alarm from sounding.

39 comments:

Bill said...

thanks, this is so obvious i've missed it for years (and resorted to horrible software instead).

+1 internets to you!

Anonymous said...

thank u :D

Dman said...

omg, thankyou soooooooooo much. How in gods green earth did i not think of that. Thanks again

Anonymous said...

Finding this was great considering I am traveling 2,000 miles away from home and my cell died!

ThankS!!!!

MrH said...

Thanks, its so obvious! but I had never thought of it! !

Anonymous said...

Genius !

Anonymous said...

Thanks so much - lifesaver!

Anonymous said...

ahhh you saved my life!!!!!!
thanks

Anonymous said...

why have so many people not thought of this?! I'm in the exact same situation if there is anything that you should consider a useful app it's one that is provided with your os!

Anonymous said...

Wow! Thank you for posting this.
Like everybody else, I don't know why didn't I thought about this before.
<3

Anonymous said...

As Bill and MrH said, this is so obvious. I could kick myself for not thinking of it myself. Brilliant stuff, mate.

Anonymous said...

Genius

Anonymous said...

Hi all,
could anyone tell me why my computer does not wake from sleep when i set a new event-alarm? is it only the screen tha awakes in case or should the HD also? what am i doing wrong?

mew said...

I just tried this and it doesn't wake up my computer from sleep :(

Michael Fourman said...

Since !0.5.6 it seems that the iCal alarm isn't enough to wake the Leopard.

Setting the Energy Saver to wake the computer is a kludge - but it works!

Alex said...

Genius times two!!!

Jenny said...

Excellent!

I'm going to use this when I'm working on the couch and I just get sleeeeepy and need to take a nap. In that case, I'm not going to change the Energy Saver settings, but simply turn on the Jiggler app if I only want to rest my eyes for awhile.

David said...

WOW.hahahahaha i use iCal all the time 24/7 and for some reason didnt think of it like all the other idiots on this page. thx lol

Squidge Mann said...

Fantastic! This post just saved me from driving back across Cardiff to pick up my phone from Squidge Media HQ!

MKK said...

Thanks!

MKK said...

Thanks!

Anonymous said...

Most helpful thing i read in a long time. Thanksomuch

Jonathan Michaels said...

Thanks. I am in Nairobi without a alarm clock or cell phone but I have my Macbook.

Anonymous said...

Forget iCal. This is all you need and it's free.

Explinfin said...

Thanks a lot! Useful since my cell alarm didn't go off this morning, I have set my mac to do the job as well! great.

Anonymous said...

Thank you

Anonymous said...

Thanks, I was not wanting to get an absurd app. This is great!!

Andrew said...

Maybe I'm an idiot but I cannot get this to work. I set it up and the alarm never goes off. Any ideas?

Anonymous said...

to wake computer use energy save preferences and schedule computer to wake up as said in the post! but you need to leave the power cable connected and the LID up or else the mac wont wake up!!!

mia park said...

rock on. best advice.

Anonymous said...

I quite possible love you! Thanks a million. Now i get to boogie to american boy first thing in the morning.

XXXX

Miche

kalz said...

Hi
Did help me when I needed it gr8 post .
Thanks
Kalz(:

AdamMartin said...

i'm hoping this will work on snow leopard too. if i plug it in and just turn my brightness down to 0 iCal should just make the noise anyway shouldn't it?

Anonymous said...

Thank you SO MUCH! Much more elegant than the Python tricks I was resorting to!

Anonymous said...

omg...u saved me...now your my chuck norris :D

Anonymous said...

u r perfect, thank u so much...

Anonymous said...

u r perfect, thank u so much...

Anonymous said...

saved my life man!

Anonymous said...

Thank you very much for this! So simple to do, and like everyone else said I feel stupid for not thinking of this! Thanks very much again! :)