NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

☞ Install NKO Atomic Clock(Android app) at Google Playstore
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https://www.yes24.com//Templates/FTLogin.aspx?ReturnURL=http://ticket.yes24.com/Pages/Perf/Sale/PerfSaleProcess.aspx server time check history

  • 2018-09-12 19:59:59 KST -1.005357
  • 2018-08-17 20:00:03 KST -0.150472
  • 2018-08-10 17:56:49 KST -0.761122
  • 2018-08-10 17:54:36 KST -0.573707
  • 2018-06-15 10:46:12 KST 0.817504
  • 2018-05-14 01:50:23 KST -0.817354
  • 2018-05-04 17:30:02 KST -0.698471
  • 2018-05-03 17:29:06 KST -0.584535
  • 2018-04-30 05:31:44 KST -0.115381
  • 2018-04-24 08:47:52 KST -0.680732
  • Average -0.4569627

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We fetch a server clock and let you see

Webservers transmit their time in seconds unit, so without special treatment, the maximum error would be as big as 1 second. NKO Atomic Clock calculates a server time more than ten times in 1 second and seize the moment when the second changes. Thus we can minimize the calculation error as small as 0.1 second. Moreover, delays between our server and a destination server are considered so the accuracy of time increases.

NKO supports the HTTPS protocol and subdomains

Some servers use different servers over protocols or subdomains. You can get a desired result by specifying more details.


# You need to tell us an exact server address. For example, some sites host differently by whether the address begin with WWW or not.

# Even if your computer clock isn't synchronized, NKO always will display correct time.

# If you click a numeric time error in the history view, the clock will use that measurement.

# The results can have quite much error if the destination server is under load balancing. Please refer to a variance in the server time history information.

# A particular service uses its own time clock, different with web servers' clock. in this case, server time guessing is not meaningful.