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

  • 2018-10-31 21:11:14 KST -0.060844
  • 2018-10-25 21:37:51 KST -0.067385
  • 2018-08-21 09:59:05 KST 0.000208
  • 2018-08-21 09:57:53 KST -0.001937
  • 2018-08-21 09:56:43 KST -0.056789
  • 2018-08-21 09:55:19 KST -0.012703
  • 2018-08-21 09:52:59 KST -0.030113
  • 2018-08-21 09:51:49 KST -0.042275
  • 2018-08-21 09:50:15 KST -0.070059
  • 2018-08-21 09:46:02 KST -0.036283
  • Average -0.037818

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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.