MacBook Air time changing back ~5 months after wakeup

Hi,

I have M1 MacBook Air with macOS Monterey 12.0.1 installed. I wasn't using my machine for about month and recently, when I turned in on again I found out that time was changed to some day in July. I was not having time then to work out this issue, but I came back to it recently.

I tried check out automatic date&time set checkbox, set time manually and then check that box again - after that time again returns to July. Yesterday I found out that using:

sudo sntp -sS -t 15 time.apple.com

works (without -t doesn't, because in almost all tries timeouts occur). My machine worked fine, but today, when I turned it on, there was July date and time again set. I found out, that this is set in some moment when closing/opening lid. I have portion of logs:

default	23:22:12.201247+0100	timed	xpc_activity_register: com.apple.timed.ntp.wanted, criteria: dictionary
default	23:22:12.201270+0100	timed	_xpc_activity_register: com.apple.timed.ntp.wanted (0x13ff0e880), 0
default	23:22:12.201291+0100	timed	xpc_activity_set_criteria: com.apple.timed.ntp.wanted (0x13ff0e880), dict
info	23:22:12.201354+0100	timed	Proactive time is not necessary, dropping job with infinite start time
default	23:22:12.201375+0100	timed	xpc_activity_set_criteria, lower half: com.apple.timed.ntp.wanted (0x13ff0e880), dict
debug	23:22:12.201421+0100	timed	looked up value <private> for key TMAutomaticTimeOnlyEnabled in CFPrefsPlistSource<0x13fe0e760> (Domain: com.apple.timed, User: kCFPreferencesCurrentUser, ByHost: No, Container: (null), Contents Need Refresh: No) via CFPrefsSearchListSource<0x13fe0d6c0> (Domain: com.apple.timed, Container: (null))
debug	23:22:12.201514+0100	timed	found no value for key DisableAutomaticTime in CFPrefsSearchListSource<0x13fe0d6c0> (Domain: com.apple.timed, Container: (null))
default	23:22:12.201451+0100	timed	_xpc_activity_set_criteria: com.apple.timed.ntp.wanted (0x13ff0e880), dict
default	23:22:12.201652+0100	timed	_xpc_activity_set_criteria: xpc_set_event com.apple.timed.ntp.wanted, 1
default	01:26:51.940077+0200	timed	Setting system time to Sun Jul 18 01:26:51 2021 from TMTimeSynthesizer
default	01:26:52.037009+0200	timed	cmd,apply,src,settimeofday,rtc_s,710586.540071750,rtc_unc_s,0.000500002,t_s,648257211.937489152,unc_s,3652.791653771,mach,232473687884,adjust,-12264920.262524843,success,1,after_m,232473687887
info	01:26:52.037055+0200	timed	Dropping com.apple.timed.applyTime as it isn't used in any transform (not in the config or budgeted?)
default	01:26:52.037758+0200	timed	cmd,rtc_offset,set,1625853825397417402,was,1625853825397277000,now,1625853825397399000,success,1

I have no idea what could be problem and where to dig to find solution. I checked descriptions from here https://apple.stackexchange.com/questions/117864/how-can-i-tell-if-my-mac-is-keeping-the-clock-updated-properly but I'm not sure if informations about timed are still valid, cause this is for older OS version and I also don't have all mentioned keys from timed plist:

sudo defaults read /var/db/timed/com.apple.timed
{
    RTCResetCount = 0;
    STF = {length = 542, bytes = 0x62706c69 73743030 d4010203 04050607 ... 00000000 0000019c };
    TDTF = {length = 732, bytes = 0x62706c69 73743030 d4010203 04050607 ... 00000000 00000230 };
    TMLastNtpFetchAttempt = "710589.335647";
    TMLastRtcTime = "710904.79454";
    TMSystemTimeSet = 1;
    TMVersionKey = 17;
}

I will be glad to receive some information how to solve this problem or maybe where to dig deeper to find what causes this.

Thanks for your help.

Posted on Dec 6, 2021 2:43 PM

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MacBook Air time changing back ~5 months after wakeup

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