NKO Atomic Clock

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

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우리말 English

https://sjpt.sejong.ac.kr/main/view/Login/doSsoLogin.do?p= server time check history

  • 2022-08-22 09:58:26 KST -0.077472
  • 2022-08-22 09:55:40 KST 1.516992
  • 2022-08-22 09:52:03 KST 5.428844
  • 2022-08-22 09:44:25 KST -0.305810
  • 2022-08-22 09:40:29 KST 0.608236
  • 2022-08-19 09:51:06 KST 1.735906
  • 2022-08-18 09:45:10 KST 0.822865
  • 2022-08-18 09:36:48 KST 1.772548
  • 2022-08-17 09:52:05 KST 3.726552
  • 2022-08-17 09:43:02 KST 0.266820
  • Average 1.5495481

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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.