I like the idea of wider use of TAI but there seem to be plenty of obstacles. For example: * Is it possible to set up a standards-compliant network time server

I like the idea of wider use of TAI but there seem to be plenty of obstacles. For example: * Is it possible to set up a standards-compliant network time server that serves the time in TAI? (The older protocols, at least, seem to specify UTC.) * Is it possible to put the time in TAI in e-mail headers? (It would be a nice visible way of showing one's support for TAI, but it doesn't seem to be possible according to RFC 2822 -- https://www.rfc-editor.org/rfc/rfc2822#section-3.3 https://www.rfc-editor.org/rfc/rfc2822#section-3.3 -- though you could just put "TAI" as an "obs-zone": according to section 3.4 it would be "considered equivalent to "-0000" unless there is out-of-band information confirming their meaning")