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://sugangdev.semyung.ac.kr/jsp/web2/WEB2050R.jsp server time check history

  • 2019-08-23 08:25:59 KST -10.476194
  • 2019-08-23 08:17:44 KST -10.475406
  • 2019-08-23 08:01:46 KST -10.397141
  • 2019-08-21 08:11:42 KST -22.838168
  • 2019-08-21 08:04:37 KST -22.786120
  • 2019-08-21 08:00:41 KST -22.817918
  • 2019-06-22 11:57:52 KST -43.147958
  • 2019-03-06 08:27:09 KST -16.889465
  • 2019-02-22 15:25:07 KST -14.693993
  • 2019-02-22 08:20:13 KST -15.373647
  • Average -18.989601

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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.