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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http://nko.kr/?url=http://ticket.yes24.com/Pages/Perf/Detail/DetailSpecial.aspx?IdPerf=31650 server time check history

  • 2021-01-19 05:43:22 KST 0.036955
  • 2021-01-16 02:03:25 KST 0.224050
  • 2021-01-14 09:47:44 KST 0.079607
  • 2021-01-10 11:45:12 KST 0.035099
  • 2021-01-09 18:27:37 KST -0.000268
  • 2021-01-07 17:32:10 KST -0.052707
  • 2021-01-04 21:21:50 KST 0.126178
  • 2021-01-01 00:45:25 KST 0.063740
  • 2020-12-28 22:40:38 KST 0.110866
  • 2020-12-28 16:20:48 KST 0.067593
  • Average 0.0691113

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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.