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/-onoff server time check history

  • 2020-04-05 21:42:31 KST 0.000735
  • 2020-02-25 19:02:27 KST -0.036286
  • 2020-01-15 17:40:54 KST -0.019901
  • 2020-01-01 18:41:03 KST -0.040843
  • 2019-11-27 02:17:31 KST -0.046062
  • 2019-11-15 18:45:48 KST -0.057174
  • 2019-11-06 18:46:17 KST -0.044235
  • 2019-10-31 19:59:44 KST -0.006857
  • 2019-10-31 19:58:44 KST -0.049395
  • 2019-10-31 19:56:49 KST -0.017406
  • Average -0.0317424

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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.