[LEAPSECS] New Year in Times Square

Jonathan E. Hardis jhardis at tcs.wap.org
Sat Jan 1 01:08:56 EST 2011

On Jan 1, 2011, at 12:05 AM, Daniel R. Tobias wrote:

> I just watched the ball drop in Times Square (on TV, not in person!),

> and noticed that my watch (auto-synced daily via radio signal) was

> about 15 seconds fast compared to the countdown clock used by the

> Times Square people and the TV network. So what time standard do

> they use for syncing, and why does it differ from mine? (My PC clock

> was a few seconds slower than Times Square, and it's also regularly

> synced via the Internet.)

Many time delays are introduced in broadcast signals. See. e.g., http://www.atsc.org/cms/standards/is_266.pdf

- Jonathan

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