[time-nuts] When does NIST change to DST?

Glenn Little WB4UIV glennmaillist at bellsouth.net
Mon Mar 14 00:35:33 EDT 2016


Does WWVB switch to DST, or, just set a bit in the data stream telling 
the device that receives the signal that DST is active?
I seam to remember (that is dangerous) that WWVB data has GMT time 
encoded into the data stream and that it is up to the receiving device 
to display the correct offset from GMT.

My buddy, Google, found the data WWVB transmits here:

http://www.nist.gov/pml/div688/grp40/wwvbtimecode.cfm

Hope this helps

73
Glenn
WB4UIV


On 3/13/2016 10:21 PM, Andy wrote:
> I wonder if WWVB switches to DST around 0200Z, maybe?  Since it can't
> tell where your local zone is.
>
> Andy
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Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
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