[Info-vax] DTSS and NTP

[Chris Townley]

On 05/06/2023 21:45, Stephen Hoffman wrote:
> On 2023-06-05 20:17:08 +0000, Chris Townley said:
> 
>> However I presume I will miss the automatic changes at BST begin/end, 
>> unless NTP can be made to do that.
> 
> DTSS (DECdtss) timekeeping—including TDF and TZ and DST support and the 
> rest—was integrated later OpenVMS V7 and that was also then integrated 
> with whatever version of TCP/IP Services NTP was current back then, the 
> DTSS timekeeping RTL was also integrated but first documented with 
> OpenVMS around V8.2, and it's all managed with UTC$TIME_SETUP.COM (and 
> either NTP or DTSS giblets as needed), and the related database and 
> tooling is based on the IANA / Eggert / Olson definitions. This is all 
> far enough back that it's in the OpenVMS FAQ, too.

Thanks, I will have a play there

-- 
Chris