Mike Bell wrote:
At a previous employer - they designed a external time reference that had
some special features - It could adjust the speed of the clock to adjust to
time changes.
DST coming - run clock double time until you get to an hour ahead.
fallback - run clock half speed till you match up.
every so often they would dial out to somewhere to sync but it kept good
enough time, it didn't happen very often.

I always wondered why IBM didn't provide equivalent functionality

IBM does provide a TOD "steering" capability, although with slightly different characteristics than those you describe.

--
Edward E Jaffe
Phoenix Software International, Inc
5200 W Century Blvd, Suite 800
Los Angeles, CA 90045
310-338-0400 x318
[EMAIL PROTECTED]
http://www.phoenixsoftware.com/

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