[Info-vax] Significance of 2020 / 2021 date

[Stephen Hoffman]

On 2021-01-07 18:40:56 +0000, Hein RMS van den Heuvel said:

> On Thursday, January 7, 2021 at 12:33:57 PM UTC-5, Andy Burns wrote:
>> issinoho wrote:
>> 
>>> We have some old 90s VAX C code which rejects any dates after the year 2020
>> Does this use 2 digit years or 4 digit?
>> 
>> Some systems use "date windowing" and assume e.g. yy below 20 means 
>> 19yy otherwise it means 20yy.
> 
> Ah yes, I've seen those - OpenVMS has it!
> 
> nitpicking - year XX below 20 would 20xx, and above it would be 19xx

The OpenVMS pivot year is 57.

Which also happens to be the year DEC was founded.


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