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.kumoh.ac.kr/onestop/sugang/w_sugang_1.html server time check history

  • 2019-04-18 20:34:35 KST -0.060984
  • 2019-04-15 06:21:57 KST 0.003796
  • 2019-03-06 09:55:18 KST -0.016915
  • 2019-03-06 09:42:44 KST -0.017722
  • 2019-02-27 09:59:10 KST -0.039958
  • 2019-02-27 09:57:06 KST 0.004930
  • 2019-02-27 09:53:08 KST -0.073106
  • 2019-02-27 09:51:52 KST -0.053402
  • 2019-02-27 09:46:24 KST -0.038274
  • 2019-02-27 09:41:35 KST 0.001949
  • Average -0.0289686

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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.