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://sugang.jj.ac.kr server time check history

  • 2020-01-08 19:54:58 KST -0.017017
  • 2018-08-02 12:27:06 KST -0.037059
  • 2018-08-02 10:42:38 KST -0.008581
  • 2018-08-01 10:57:14 KST 70.259048
  • 2018-08-01 10:54:32 KST 70.296582
  • 2017-09-14 04:30:47 KST -0.071784
  • 2017-08-01 10:58:09 KST -0.029692
  • 2017-08-01 10:56:27 KST 0.006584
  • 2017-08-01 10:55:20 KST -0.048210
  • 2017-08-01 10:51:59 KST -0.013540
  • Average 14.0336331

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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.