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?pgmcd=0035 server time check history

  • 2019-04-15 20:11:50 KST -10.257677
  • 2019-02-22 08:27:08 KST -15.421854
  • 2019-02-22 08:24:27 KST -15.405013
  • 2019-02-22 08:12:53 KST -15.438115
  • 2019-02-21 01:18:21 KST -46.649431
  • 2019-02-21 01:06:21 KST -15.836678
  • 2019-02-20 08:29:21 KST -14.871726
  • 2019-02-20 08:28:11 KST -47.618990
  • 2019-02-20 08:26:55 KST -14.850585
  • 2019-02-20 08:25:36 KST -47.587063
  • Average -24.3937132

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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.