On 8 Jan 2007 at 0:15, Tony Finch wrote: > How did you extend the UTC translation back past 1972 if the undelying > clock followed TAI? I assume that beyond some point in the past you say > that the clock times are a representation of UT. However TAI matched UT in > 1958 and between then and 1972 you somehow have to deal with a 10s offset.
Formulas for UTC, as actually defined at the time, go back to 1961 here: ftp://maia.usno.navy.mil/ser7/tai-utc.dat It appears the offset was 1.4228180 seconds at the start of this. -- == Dan == Dan's Mail Format Site: http://mailformat.dan.info/ Dan's Web Tips: http://webtips.dan.info/ Dan's Domain Site: http://domains.dan.info/