Year 2000 - A Strange Date

john.pedrick@ins.state.oh.us
Mon, 12 Jul 1999 10:29:49 -0400

A form filing we recently received concerning Y2K endorsements mentioned the
usual problem of the changeover form 1999 to 2000. It also mentioned the change
from August 21, 1999 to August 22, 1999. I asked our resident Y2K expert about
the significance, and received this quote in reply. I don't know the source,
but will try to track it down.

"GPS System Time will roll over at midnight 21-22 August 1999, 132 days before
the Year 2000. On 22 August 1999, unless repaired, many GPS receivers will claim
that it is 6 January 1980, 23 August will become 7 January, and so on. Accuracy
of navigation may also be severely affected. Although it appears that GPS
broadcasts do contain sufficient data to ensure that navigation need not be
affected by rollover in 1999, it is not proven that the firmware in all
receivers will handle the rollovers in stride; some receivers may claim wrong
locations in addition to incorrect dates. Some manufacturers have already
solved the problem, but some have not."

John Pedrick
Ohio Department of Insurance

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