NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

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http://www.cjsisul.or.kr/home/main.do server time check history

  • 2022-09-27 06:58:05 KST -0.012210
  • 2022-09-26 06:57:50 KST -0.023055
  • 2022-09-25 06:58:20 KST -0.037520
  • 2022-09-24 06:58:29 KST -0.074691
  • 2022-09-23 06:58:06 KST -0.057394
  • 2022-09-20 06:57:51 KST -0.055890
  • 2022-09-19 06:57:26 KST -0.040144
  • 2022-09-18 06:57:41 KST -0.001648
  • 2022-09-17 06:58:34 KST -0.022682
  • 2022-09-16 06:57:29 KST -0.004671
  • Average -0.0329905

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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.