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://stu.sen.go.kr/edusys.jsp?page=sts_m46100 server time check history

  • 2017-12-04 21:59:27 KST -0.206152
  • 2017-12-04 21:58:19 KST -0.179354
  • 2017-09-11 20:00:13 KST -0.048849
  • 2017-09-11 19:56:39 KST -0.306306
  • 2017-08-24 22:57:42 KST -0.074425
  • 2017-08-24 22:46:30 KST -0.008523
  • 2017-08-22 22:58:41 KST 0.011204
  • 2017-08-21 21:58:08 KST -0.055966
  • 2017-08-21 21:54:15 KST -0.057381
  • 2017-06-19 21:58:07 KST -0.112303
  • Average -0.1038055

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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.