NNTP-Posting-Date: Sun, 01 Jan 2012 22:46:54 -0600 Subject: Re: New Year's countdown TV/computer synchronicity Date: Sun, 01 Jan 2012 23:46:54 -0500 From: Professor Bubba Newsgroups: rec.arts.tv,comp.lang.javascript Reply-To: Professor Bubba Message-ID: <010120122346546237%bubba@nowhere.edu.invalid> References: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 8bit User-Agent: Thoth/1.9.0 (Mac OS X) Lines: 26 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-9lThKZmBEMQIMNxek/adPl54d9aG4yYRYCK1P06Zs5RMeGG1vH7QbZb5gBjInG0df+olhWZzKIkgbOP!1ie7PnnHxODAU3OCE09vbYl9h3eMn8LGjXPpl8mgPVnn18NA+QuRVu9HyU06xdnNjqd3izsouCM= X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 2491 Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.stben.net!talisker.lacave.net!lacave.net!feed.ac-versailles.fr!proxad.net!feeder1-2.proxad.net!74.125.46.80.MISMATCH!postnews.google.com!news1.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!news.giganews.com.POSTED!not-for-mail Xref: x330-a1.tempe.blueboxinc.net comp.lang.javascript:9849 In article , Remysun wrote: > On Jan 1, 7:10 pm, denni...@dennism3.invalid (Dennis M) wrote: > > A couple of days before New Year's I put a digital javascript countdown on > > my website just for the heck of it, you just insert the date you want (Jan > > 1 2012 0:00:01 in this case) in the script and digital numbers that come > > with the script will count down to that time. > > > > But I noticed the javascript countdown -- which uses my computer's clock of > > course which is periodically adjusted by the Apple Americas > > (time.apple.com) server -- was about 10-12 seconds faster than all the > > countdowns that were going on live on TV. Is this because of the lag time > > of the signal on TV? > > > > Not a huge issue but I was just wondering if anybody had an explanation. > > Yes. I once watched a game at Michigan Stadium with a portable > television, and there was quite a lag from what I saw on the field. > That was analog, and I know from the transitional days that the > digital signal was even further behind from the analog signal. Macs call into the time server during reboot. If you haven't rebooted in a while, that might account for some of the discrepancy.