[HECnet] US DST

[Dan Cross]

On Sun, Mar 8, 2020, 9:42 PM William Pechter <pechter at gmail.com> wrote:

> [snip]
>
> Interesting how Unix seems to have done the most with Timezone
> handling.  My guess is it's because of the Bell Systems interest in
> record keeping of CDR's (Call-Detail-Records) for phone billing per
> minute charges or message units.  They probably kept the records in GMT
> and just wrote the local time of call and length on the bills when
> processing.
>
> Does anyone know if the assumption is true?
>

I've never heard that before but I doubt it's true. Most of the interesting
timezone-related work on Unix was done outside of the labs. I think in the
research Unix days it was rather more primitive, and besides, that group
was not focused on telephone billing.

        - Dan C.
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