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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우리말 English

http://sejong.ac.kr server time check history

  • 2016-08-18 11:32:35 KST -0.000241
  • 2016-08-18 09:57:00 KST -0.047115
  • 2016-02-17 09:56:00 KST 0.023532
  • 2016-02-17 09:45:53 KST -0.044173
  • 2016-02-17 05:50:31 KST -0.056110
  • 2016-02-16 09:51:47 KST -0.032990
  • 2016-02-16 09:48:31 KST -0.083975
  • 2015-08-19 09:59:12 KST -0.070562
  • 2015-08-19 09:54:00 KST -0.015974
  • 2015-08-19 09:45:27 KST -0.001173
  • Average -0.0328781

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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.