27 Jul
2021
27 Jul
'21
8:01 a.m.
On 7/26/21, Karl <gmkarl@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. 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.