Date and time jumps back to december 5th 2013

With regard to the 135122 go into system preferences > language and region and make sure you have English (uk) selected see if that puts Yosemite back in about this mac

Hi Again

I am in Crete Greece but still have mine set to Apple Americas/US (time.apple.com) have you tried to synch another ?

I don't know if there is a CMOS battery that keeps the time.

There is, and it needs to be replaced by an Apple-certified technician.

Same thing here,

It even jumps back to the same date

Have looked everywhere and still can't find a fix to this :/

Hello,

starting from 15 days ago, my mac resets the data and time to 5th December 2013 22:50, every 3 hours: I'm able to take it back to the right data and time just checking off and on the apple time server synch on the Date and Time Preference Panel.

I suspect that everything started after a no safety software installation and I fear that a remote attacker may be able to execute arbitrary code on my mac: few hours ago, Google warned me about an intrusion attempt from US user (I'm in Italy) and asked me to change my password.

I tried to use the clock without synch it, I reset the PRAM and SMC, I updated the NTD withhttp://www.ntp.org patch, I re-installed (without formatting my MacBook Pro) Yosemite 10.10.4 (14E46), I run the Apple Hardware Test, but nothing changed: every 3 hours my data and time return to 5th December 2013 22:50.

Any advice?

Thank

See Linc's post.

Thanks for your reply.

Are you referring to CMOS battery replacement?

I don't think that this solution could work in my case, because the data and time changes seem to be controlled by a timer.

it happens every 3 hours and if I put the mac in stop, the timer continues to count from where it stopped before the computer stop (e.g. I have a time reset at 12, I stop the computer at 1 pm, I re-restart it at 3 pm, the new time reset happens 5 pm).

Does anyone have any alternative suggestions?

Thanks

If you're using a resetter for Little Snitch it may interfer with date sync.

Thanks for your reply.

I used Little Snitch and, maybe, the problem started as soon as I removed it (using their official uninstaller).

Maybe it left something somewhere, is it possible?

Thanks

Have a look in library/launchdaemons (invisible folder, you may change it to visible with Onyx). If there is a folder with "lsreset" in it, just trash it and reboot.

you are the best!!

it works for me: one full day without data and time reset.

Thank you very much

Hi everyone, I have the exact same problem as Dirk and Pablo, more specifically, described.

I have deleted the corresponding folder in LaunchDaemons as outlined by Kavawa but the problem persists.

Any additional ideas or insights what could resolve this issue, apart from completely re-installing OS X and all applications? I suppose even restoring from Time Machine wouldn't help here.

Thanks

Hi everyone.

Same problem with a Mini Mac (end 2014) and MS Win 10: every day between 5PM and 6PM, date and time jump back to February 25th 2016 at 09.45PM.

Regards.

Alessandro