On 2021-01-24 11:53, Paul Eggert wrote:
I replied to that survey, basically saying that currently our work is based on two timescales (TAI and UTC) and that I hope they don't turn it into four (TAIold, UTCold, TAInew, UTCnew).
Or would it be three? That would be even more confusing....
My reply suggested they divorce the time scales to allow business systems to use approximate POSIX like common law legal solar time as they ignore leap seconds one way or another; allow scientific systems to use atomic time and ignore legal solar time; and just ignore the ITU as broadcast radio time signals (DCF/JJY/MSF/WWV/B/H) are unavailable most places, may need equipment no longer commonly available, and too low accuracy for modern needs; other commonly available sources are delayed to uselessness by digital processing. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]