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/ server time check history

  • 2020-03-01 22:15:06 KST -0.025196
  • 2020-01-30 05:29:54 KST -0.022588
  • 2019-10-20 07:10:13 KST -0.105057
  • 2019-08-06 13:59:07 KST -0.008793
  • 2019-08-06 13:43:37 KST 0.000371
  • 2019-08-05 17:09:06 KST -0.053464
  • 2018-10-01 06:22:29 KST -0.003471
  • 2018-09-25 08:21:10 KST -0.033096
  • 2018-09-25 00:54:02 KST -0.064963
  • 2018-07-22 15:35:24 KST -0.011988
  • Average -0.0328245

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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.