F=:86400%~(3#60)&#.

   G=:[:}.' ::'0 3 6}[:,3":100+[:,.F^:_1


   T=:G :: ([:F@". 2 5}~&' ')


   T'02:57:46'

0.123449

   T T'02:57:46'

02:57:46

   T 0.123449

02:57:46


  About 85 chars, but does full formatting.

Le 2017-03-13 à 21:18, Raul Miller a écrit :
> Technically, I think they do want the : back in and I think they also
> want fixed width formatting (leading zeros on month and day where
> necessary).
>
> I ignored that part, and focused on a workalike for the original T.
>
> Thanks,
>


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