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25 August 2010, 03:10 PM | #61 |
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I use nist.time.gov.
Cell phones are notoriously bad. On some networks the time is close, others are off by well over a minute. It seems unbelievable that this should be the case, but it's true. In the SF Bay Area, my iPhone is currently 40 seconds off after doing an auto-update from the network. They should use an NTP server or the built-in GPS receiver instead. |
26 August 2010, 07:11 AM | #62 |
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In front the computer - www.time.gov. In the morning I look at the atomic clock in my bathroom (one in the kitchen is a traditional dial - no second hand. I check my daily watch everyday before going downstairs to leave for work.
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30 August 2014, 12:56 PM | #63 |
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Is time.gov based on an atomic clock?
Also, what has happened with the USNO? I've used that for some time, but now the time display won't load. |
30 August 2014, 01:00 PM | #64 |
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trf.
its on the top. |
30 August 2014, 01:06 PM | #65 |
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I have an atomic clock I bought at Radio Shack and a Casio Gshock solar and atomic.
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30 August 2014, 01:08 PM | #66 |
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30 August 2014, 01:09 PM | #67 |
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My iphone
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30 August 2014, 01:21 PM | #68 |
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30 August 2014, 01:25 PM | #69 |
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That's your computer's clock. It can be way off by the time it resets once weekly.
My computer's offset is shown below. It will update tomorrow night.
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30 August 2014, 01:43 PM | #70 |
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http://wwp.greenwichmeantime.com I use this, but i only use it when setting a watch that has stopped due to the power reserve running down. In normal day-to-day i don't mind being a little off, although i do sometimes check it daily just for something to do and to keep an eye on it.
Sent from my SM-N900 using Tapatalk
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30 August 2014, 01:44 PM | #71 | |
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Quote:
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30 August 2014, 01:55 PM | #72 |
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G-Shock Rangeman (Atomic) or Emerald app for iphone
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30 August 2014, 01:57 PM | #73 |
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It's also off by at least nine seconds.
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30 August 2014, 02:06 PM | #74 |
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My pool pump timer is set for 7pm, that's all I need
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30 August 2014, 03:11 PM | #75 | |
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Quote:
as a kid and ham radio enthusiast in the late 60 s , that round the clock sleep inducing droning tic toc tic toc tic toc was mesmerizing ....until ..." di-Dah-Dah ! ...di -Dah - Dah !....di- di- di- Dah !" woke you up ! what the tics and tocs actually are transmitting : from wikipedia " WWV transmits audio "ticks" once per second, to allow for accurate manual clock synchronization. These ticks are always transmitted, even during voice announcements and silent periods. Each tick begins on the second, lasts 5 ms and consists of 5 cycles of a 1000 Hz sine wave. To make the tick stand out more, all other signals are suppressed for 40 ms, from 10 ms before the second until 30 ms after (25 ms after the tick). As an exception, no tick (and no silent interval) is transmitted at 29 or 59 seconds past the minute. In the event of a leap second, no tick is transmitted during second 60 of the minute, either. On the minute, the tick is extended to a 0.8 second long beep, followed by 0.2 s of silence. On the hour, this minute pulse is transmitted at 1500 Hz rather than 1000. The beginning of the tone corresponds to the start of the minute. Between seconds one and sixteen inclusive past the minute, the current difference between UTC and UT1 is transmitted by doubling some of the once-per-second ticks, transmitting a second tick 100 ms after the first. (The second tick preempts other transmissions, but does not get a silent zone The absolute value of this difference, in tenths of a second, is determined by the number of doubled ticks. The sign is determined by the position: If the doubled ticks begin at second one, UT1 is ahead of UTC; if they begin at second nine, UT1 is behind UTC." got it ? simple . WWV through a vintage receiver ...missing the morse code of the old days, though : http://m.youtube.com/watch?v=0AiR97qhD4U |
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30 August 2014, 03:26 PM | #76 |
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Same as most...
http://time.gov/HTML5/ It is NIST time. National Institute of Standards and Testing. The official time as far as I know. |
30 August 2014, 03:44 PM | #77 |
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I sync to time.is for all my watches.
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30 August 2014, 03:44 PM | #78 |
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Every morning I ask my driver. So far, he is been absolutely reliable.
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30 August 2014, 04:43 PM | #79 |
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G-Shock atomic solar or WWV at either 5 or 10mhz on the shortwave radio.
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30 August 2014, 08:33 PM | #80 |
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I use this Rapport Atomic Clock (same guys that make the watch winders), picked it up off eBay for about £15 earlier this year.
It’s from the Eighties I believe, a solid piece of wood, very cool & retro looking. Uses a couple of AA batteries & doesn’t miss a beat |
31 August 2014, 05:50 AM | #81 |
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My notebook's clock
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1 September 2014, 07:03 AM | #82 |
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My German Shepherd, she gets me up at 5:45am every morning. I confirm the time on the phone in the kitchen which is a fios connection.
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1 September 2014, 07:31 AM | #83 |
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http://time.gov/HTML5/ and Time.is - reflects the same time..to the second.
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1 September 2014, 11:57 AM | #84 |
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9 October 2014, 01:39 AM | #85 |
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20 December 2014, 07:10 AM | #86 | |
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Quote:
The voice is now computerized, but I still like it.
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20 December 2014, 08:16 AM | #87 |
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Me too...my Gshock syncs to the center in Colorado every night.
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28 December 2014, 04:09 AM | #88 |
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I live in the NY area and rely on public transit a lot so my watches need to be fairly accurate...even though NJT isn't always!
I use the Emerald app on my iPhone.
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28 December 2014, 12:42 PM | #89 |
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28 December 2014, 09:58 PM | #90 |
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PC clock (which also feeds the 'TRF clock')
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