jcjeant
With respect, I do not think that the use of the word "around" is "deceiving". My background is IT, and when you look at log files from certain software applications the timestamps will be accurate to hundredths or thousandths of seconds.
Therefore, it is not unreasonable to assume that the log files from the DFDR are recording in hundredths or thousandths of seconds intervals, which would mean that for ease the time would be rounded up to the nearest second hence the use of the word "around".
Or maybe it's just been lost in translation from French to English...