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 server time check history

  • 2018-02-24 16:12:57 KST -3.627087
  • 2017-09-26 06:58:55 KST -0.538848
  • 2017-09-25 06:59:48 KST 0.087369
  • 2017-09-25 06:57:07 KST 0.015594
  • 2017-09-24 06:59:44 KST -0.150450
  • 2017-09-24 06:58:31 KST -0.135859
  • 2017-09-23 06:59:21 KST 0.551461
  • 2017-09-23 06:56:37 KST 0.733440
  • 2017-09-22 06:59:00 KST 0.181773
  • 2017-09-22 06:54:41 KST 0.169498
  • Average -0.2713109

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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.