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

  • 2021-05-15 07:01:32 KST -0.008236
  • 2021-05-15 06:56:33 KST 0.000504
  • 2021-05-14 06:56:43 KST -0.074562
  • 2021-05-11 06:56:26 KST -0.044080
  • 2021-05-10 06:56:31 KST -0.006785
  • 2021-05-09 06:56:44 KST -0.004841
  • 2021-05-08 06:56:44 KST -0.026752
  • 2021-05-04 06:56:50 KST -0.041147
  • 2021-05-03 06:56:38 KST -0.006874
  • 2021-05-01 06:56:50 KST -0.019765
  • Average -0.0232538

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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.