How do you get accurate time?

Answer 1

1.)You can reset your computer clock to "internet Time" by clicking on the clock in lower right hand corner, follow the links to change date and time settings.

2.)Your cell phone clock is probably within a few seconds of the correct time.

3.)You can get the time signal over short wave radio (weather radio, for example).

5.) The US National Institute of Standards and Technology makes that same time signal available by telephone. The following is quote from the NIST website: "The audio portions of the WWV and WWVH broadcasts can also be heard by telephone. The time announcements are normally delayed by less than 30 ms when using land lines from within the continental United States, and the stability (delay variation) is generally less than 1 ms. When mobile phones are used, the delays are often more than 100 ms due to the multiple access methods used to share cell channels. In rare instances when the telephone connection is made by satellite, the time is delayed by 250 to 500 ms. To hear these broadcasts, dial (303) 499-7111 for WWV (Colorado), and (808) 335-4363for WWVH (Hawaii). Callers are disconnected after 2 minutes. These are not toll-free numbers; callers outside the local calling area are charged for the call at regular long distance rates."