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I just realized that the time on my Macbook Pro running Mojave is incorrect. For example, current time shown is 22:47. But the correct time should be 22:39.

I tried all listed time servers (three servers) on time settings, but no luck. All my time settings are correct.

I tried many ways to fix it with no luck. For example, I tried to turn off auto-time option, set a wrong time and then turn auto-time option on etc.. The auto-time always gives me the same wrong time. (8m difference)

So what is the problem and how to fix it?

Btw, the reason why I know what the correct time is because all my mobiles, other Linux PCs, google can tell me the correct time.

More:

I ran the following commands suggested by one comment and it fixed the problem.

$ sntp -d $(< /etc/ntp.conf); echo; sudo sntp -S $(< /etc/ntp.conf)
sntp 4.2.8p10@1.3728-o Tue Mar 21 14:36:42 UTC 2017 (136.200.1~4588)
kod_init_kod_db(): Cannot open KoD db file /var/db/ntp-kod: No such file or directory
handle_lookup(server,0x2)
move_fd: estimated max descriptors: 65536, initial socket boundary: 20
handle_lookup(time.apple.com.,0x2)
server lookup error nodename nor servname provided, or not known
sntp sendpkt: Sending packet to 17.253.16.253:123 ...
Packet sent.
sntp sendpkt: Sending packet to 17.253.26.125:123 ...
Packet sent.
sock_cb: time.apple.com. 17.253.26.125:123
2020-04-09 23:22:05.625789 (-0800) -488.274511 +/- 325.516966 time.apple.com. 17.253.26.125 s1 no-leap

sntp 4.2.8p10@1.3728-o Tue Mar 21 14:36:42 UTC 2017 (136.200.1~4588)
kod_init_kod_db(): Cannot open KoD db file /var/db/ntp-kod: No such file or directory
server lookup error nodename nor servname provided, or not known
2020-04-09 23:22:10.854075 (-0800) -488.226441 +/- 325.484462 time.apple.com. 17.253.16.253 s1 no-leap
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You can trigger the sync manually by running

sudo sntp -S $(sed -n '/^server/s/.* //p' /etc/ntp.conf)

(just ignore the kod_init_kod_db error or run sudo touch /var/db/ntp-kod to create the missing file)

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