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://uis.sejong.ac.kr/app/sys.Login.servj server time check history

  • 2021-05-31 09:54:19 KST -63.153213
  • 2021-05-31 09:51:11 KST -63.179765
  • 2021-05-05 00:45:47 KST 4.428358
  • 2021-03-26 15:21:10 KST -31.954617
  • 2021-03-05 07:50:54 KST -0.087565
  • 2021-03-04 09:51:40 KST -21.429617
  • 2021-03-03 09:57:23 KST 21.347163
  • 2021-03-03 09:44:44 KST -20.992598
  • 2021-03-03 09:38:14 KST -21.016852
  • 2021-02-24 09:34:16 KST 20.002712
  • Average -17.6035994

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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.