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.seoil.ac.kr/sugang/sugang/doLogin.do server time check history

  • 2020-02-13 18:04:52 KST -124.417149
  • 2019-09-05 10:20:18 KST -99.456549
  • 2019-08-22 10:51:09 KST -97.312696
  • 2019-08-01 01:38:41 KST -94.095651
  • 2019-02-20 09:57:19 KST -68.532826
  • 2018-07-28 01:30:46 KST -36.222128
  • 2018-04-19 08:05:38 KST -22.124502
  • 2018-03-19 19:29:01 KST -17.263664
  • 2018-03-10 10:11:19 KST 2.471545
  • 2018-02-28 08:19:12 KST -14.100504
  • Average -57.1054124

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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.