NKO Atomic Clock

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

☞ Install NKO Atomic Clock(Android app) at Google Playstore
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우리말 English

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

  • 2019-12-04 09:43:45 KST -1.188376
  • 2019-11-06 16:23:23 KST -1.662113
  • 2019-10-26 15:46:37 KST 7.099518
  • 2019-09-06 09:57:39 KST -2.796365
  • 2019-09-06 09:56:39 KST -4.604685
  • 2019-09-06 09:55:38 KST -4.625493
  • 2019-09-06 09:54:35 KST -50.029704
  • 2019-09-06 09:53:33 KST -4.569337
  • 2019-09-06 09:52:08 KST -21.538309
  • 2019-09-03 09:55:34 KST -72.870393
  • Average -15.6785257

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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.