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://cafe.daum.net/WannaOneOfficial server time check history

  • 2020-03-30 18:23:42 KST -0.051384
  • 2020-03-29 22:27:47 KST -0.067616
  • 2020-03-29 09:28:24 KST -0.008592
  • 2020-03-28 10:45:32 KST -0.074347
  • 2020-03-26 23:31:03 KST -0.022965
  • 2020-03-26 19:36:03 KST 0.002817
  • 2020-03-25 21:50:13 KST -0.047994
  • 2020-03-25 18:36:26 KST -0.032957
  • 2020-03-24 20:52:48 KST -0.047506
  • 2020-03-22 20:11:03 KST -0.066979
  • Average -0.0417523

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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.