NKO Atomic Clock

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

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우리말 English

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

  • 2023-09-05 01:10:26 KST -0.402050
  • 2023-05-12 19:09:48 KST -0.011667
  • 2023-05-12 19:08:45 KST -0.000014
  • 2023-03-13 02:44:49 KST -0.060122
  • 2023-03-11 17:12:54 KST -0.068691
  • 2023-03-11 02:56:16 KST -0.025173
  • 2023-02-08 00:57:23 KST -0.079951
  • 2023-01-24 19:11:38 KST -0.035383
  • 2023-01-15 21:58:03 KST -0.045256
  • 2023-01-02 02:14:17 KST -0.027344
  • Average -0.0755651

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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.