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://st-event-summatus.dangi.co.kr/promotion/aws/2018/problem_300 server time check history

  • 2020-04-15 20:33:26 KST 2.215365
  • 2019-10-08 20:53:55 KST -0.022655
  • 2018-08-20 13:39:12 KST 0.883304
  • 2018-06-26 07:24:26 KST 0.154797
  • 2018-05-24 07:20:19 KST 0.480092
  • 2018-05-10 10:49:10 KST 0.725698
  • 2018-04-29 08:56:48 KST 0.908626
  • 2018-04-27 19:23:23 KST -0.464831
  • 2018-04-14 23:46:15 KST 3.168303
  • 2018-04-06 22:19:27 KST 0.637353
  • Average 0.8686052

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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.