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.yu.ac.kr/index_sugang.html server time check history

  • 2018-07-14 16:44:22 KST -0.024307
  • 2018-03-07 17:02:36 KST -0.031503
  • 2018-03-07 08:28:40 KST -0.022353
  • 2018-03-07 08:21:52 KST -0.026125
  • 2018-03-07 08:20:45 KST -0.291621
  • 2018-03-07 08:19:37 KST -0.003156
  • 2018-03-07 08:17:25 KST -0.029482
  • 2018-03-07 07:59:48 KST -0.065315
  • 2018-03-07 07:58:28 KST -0.054002
  • 2018-02-23 00:56:22 KST -0.034370
  • Average -0.0582234

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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.