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://uwins.ulsan.ac.kr/LESN/C/MCC02U.aspx?MenuID=MCC02U!1 server time check history

  • 2018-06-29 20:02:36 KST -0.781050
  • 2018-06-23 06:20:42 KST -1.078560
  • 2018-05-14 11:06:44 KST -0.942322
  • 2018-05-14 09:01:43 KST -0.591945
  • 2018-05-14 08:58:57 KST -0.827430
  • 2017-11-13 08:55:55 KST -0.607139
  • 2017-11-13 08:54:33 KST -0.638081
  • 2015-11-16 08:58:38 KST -0.764196
  • 2015-11-16 08:39:52 KST -0.597984
  • Average -0.75874522222222

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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.