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://sugang.korea.ac.kr/index2.jsp server time check history

  • 2020-08-18 09:59:32 KST -0.058803
  • 2020-08-18 09:58:25 KST -0.036223
  • 2020-08-18 09:55:15 KST -0.040939
  • 2020-03-24 18:31:29 KST -0.645399
  • 2020-03-24 18:28:53 KST -0.092917
  • 2020-03-24 18:27:37 KST -0.074854
  • 2020-03-24 18:26:24 KST -0.085549
  • 2020-03-24 18:24:55 KST -0.091100
  • 2020-03-24 18:22:32 KST -0.068241
  • 2020-03-24 18:11:50 KST -0.002656
  • Average -0.1196681

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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.