6 ms·
Getting a TAI timestamp is impossible because the BIPM (the authority that defines TAI) does not want TAI used for such purposes. Without approval from the aut
by sla29970 14y ago
Getting a TAI timestamp is impossible because the BIPM (the authority that defines TAI) does not want TAI used for such purposes. Without approval from the authority nobody will undertake to construct the technology to provide TAI to an operational system. Without a source for TAI, any system which claims to be using TAI is making the same mistake that POSIX made with UTC. To wit: Creating a new thing which has the name of an existing thing but does not have the properties of the existing thing. This is a recipe for confusion.
- gnosis 14y agoWhy doesn't BIPM want TAI to be used for timestamps?
- sla29970 14y agoRead between the lines of http://www.bipm.org/cc/CCTF/Allowed/18/CCTF_09-27_note_on_UTC-ITU-R.pdf http://www.bipm.org/cc/CCTF/Allowed/18/CCTF_09-27_note_on_UT... about what systems of time distribution already exist and which of those are approved for use by national and international agencies.
- CamperBob2 14y agoTAI is calculated in retrospect, as I understand it, based on the weighted contributions of the atomic timescales maintained by all of the participating countries. As a result, if you store a TAI timestamp in hopes of using it as an absolute time reference point, you will have to go back and update it when BIPM releases the next 'Circular T' bulletin (http://www.bipm.org/jsp/en/TimeFtp.jsp?TypePub=scale http://www.bipm.org/jsp/en/TimeFtp.jsp?TypePub=scale).
- albertzeyer 14y agoWell, there is libtai from djb. Isn't that credible?