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://www.cjsisul.or.kr/home/main.do server time check history

  • 2020-04-03 06:57:03 KST -0.054481
  • 2020-03-31 06:57:06 KST -0.048140
  • 2020-03-30 06:57:20 KST -0.015942
  • 2020-03-29 06:57:33 KST -0.077237
  • 2020-03-28 06:58:09 KST -0.049027
  • 2020-03-28 06:39:17 KST -0.027363
  • 2020-03-27 00:59:11 KST -0.034044
  • 2020-03-25 19:23:06 KST -0.076830
  • 2020-03-24 06:57:34 KST -0.019842
  • 2020-03-23 06:56:27 KST -0.008253
  • Average -0.0411159

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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.