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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http://sugang.knu.ac.kr/Sugang/comm/support/login/loginForm.action?redirUrl=/Sugang/cour/lectReq/onlineLectReq/list.action server time check history

  • 2021-05-04 17:59:57 KST -0.050817
  • 2021-05-04 17:21:41 KST -0.046758
  • 2019-08-06 15:55:07 KST -0.002382
  • 2019-08-06 15:54:05 KST -0.013746
  • 2019-08-06 15:40:57 KST -0.041417
  • 2019-08-06 15:39:49 KST -0.044939
  • 2019-08-06 15:36:10 KST -0.055074
  • 2019-08-06 15:25:09 KST -0.044406
  • 2019-08-06 15:20:36 KST -0.036637
  • 2019-08-06 15:16:49 KST -0.040890
  • Average -0.0377066

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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.