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

https://portal.sejong.ac.kr/jsp/login/uisloginSSL.jsp?rtUrl=uis.sejong.ac.kr/app/sys.Login.servj?strCommand=SSOLOGIN server time check history

  • 2018-06-05 17:23:33 KST -0.005598
  • 2018-06-05 17:22:08 KST -0.049868
  • 2018-02-19 09:38:12 KST -0.044702
  • 2017-08-16 09:45:32 KST 0.083923
  • 2017-07-29 10:46:27 KST -0.029827
  • 2017-02-17 09:57:09 KST -0.083369
  • 2017-02-17 09:51:43 KST -0.031795
  • 2017-02-15 09:50:47 KST -0.050859
  • 2017-02-15 09:48:59 KST -0.097349
  • 2017-02-14 09:58:34 KST -0.057405
  • Average -0.0366849

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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.