[spam] [random] google's clock is ahead of my cell phone's
gmkarl at gmail.com
Tue Jul 27 04:37:48 PDT 2021
On Tue, Jul 27, 2021, 4:03 AM grarpamp <grarpamp at gmail.com> wrote:
> On 7/26/21, Karl <gmkarl at gmail.com> wrote:
> > # I'm imagining that data is communicated via server timestamps
> > ~ $ TZ=GMT date; curl -v google.com; TZ=GMT date
> > Mon Jul 26 23:03:59 GMT 2021
> > < Date: Mon, 26 Jul 2021 23:04:06 GMT
> > Mon Jul 26 23:04:01 GMT 2021
> > # google is 5-7 seconds ahead of me right now
> That assumes you are correctly in sync with UTC.
Yeah phones sync kinda loosely. But it's notable the clocks their network
syncs with are likely the atomic ones on gps satellites.
I'm thinking timestamps help correlate things in logs.
tlsdate is pretty cool. Well studied, widely available protocol. Doesn't
form records around skew, though.
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