On 7/26/21, Karl <[email protected]> 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. There is a related tool... https://github.com/ioerror/tlsdate Many other application protocols and data streams and services embed timestamps that could be extracted.
