3 ms·
Ask HN: Is your mac's time synchronised?
You can check it on https://time.is/
On 2 different mac's I've seen time differences of over a minute. Coworkers have the same issue.
Unlocking the Date & Time setting page trigger macOS to synchronise its time, but it doesn't do this otherwise.
I find it strange that modern hardware has such a large clock skew. It's also worrying that the macOS ntp system doesn't seem to work.
- cmurf 9y agoDoes it happen following a cold boot, or wake from sleep, or has it been awake for some time? My Mac's been off for a week and just booted it, macOS 10.12.6, and the time is exact. That's next to impossible with a hardware clock, it had to have found an NTP server during or shortly after boot.
- andruby 9y agoI only notice when ssh'ing into servers or when posting something on github which then humanizes the timestamp as "posted 50 seconds from now" :) So it's a combination of sleep and cold boot. I guess somehow the ntp just never syncs except when explicitly unlocking the settings page.