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.hongik.ac.kr/cn1000.jsp?p_contm=11228035 server time check history

  • 2018-11-09 11:35:43 KST -0.018896
  • 2018-11-09 07:31:26 KST -0.050344
  • 2018-05-21 07:02:41 KST 13.101785
  • 2018-05-18 15:20:53 KST -0.053530
  • 2018-05-04 23:39:29 KST 2.611393
  • 2018-05-01 20:58:31 KST 6.486242
  • 2018-04-30 09:10:00 KST -0.078038
  • 2018-04-27 01:55:17 KST 2.919825
  • 2018-04-21 22:15:30 KST 5.554818
  • 2018-04-11 08:25:44 KST 4.232081
  • Average 3.4705336

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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.