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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https://icpa.riroschool.kr/ server time check history

  • 2018-08-30 17:25:10 KST -3.041934
  • 2018-08-30 03:01:39 KST -3.137846
  • 2018-08-16 23:51:33 KST -2.639401
  • 2018-07-15 23:59:47 KST -1.223377
  • 2018-07-12 13:56:50 KST -1.185166
  • 2018-06-21 00:51:58 KST -0.917091
  • 2018-06-21 00:50:02 KST -0.911764
  • 2018-06-13 22:57:01 KST -0.845584
  • 2018-05-14 12:07:29 KST -0.630887
  • 2018-05-14 00:02:59 KST -0.523401
  • Average -1.5056451

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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.