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://sg.kyu.ac.kr/sugang/common/login.do?method=login server time check history

  • 2018-05-25 09:49:33 KST -0.011101
  • 2018-01-19 07:55:03 KST -0.158234
  • 2017-08-04 09:56:28 KST -0.006524
  • 2017-08-02 09:43:58 KST 0.025698
  • 2017-08-02 09:41:41 KST -0.065197
  • 2017-08-02 09:39:08 KST -0.056871
  • 2017-08-02 09:37:52 KST -0.026895
  • 2017-07-31 09:55:16 KST 0.087876
  • 2017-02-08 09:56:51 KST -0.066037
  • 2017-02-06 09:59:25 KST -0.034513
  • Average -0.0311798

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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.