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/home/main.do server time check history

  • 2018-09-25 06:56:42 KST 1.047416
  • 2018-09-18 06:57:14 KST -0.116868
  • 2018-09-16 06:57:31 KST -0.107375
  • 2018-09-15 06:56:31 KST 0.462567
  • 2018-09-14 01:37:24 KST -0.256819
  • 2018-09-11 06:57:17 KST 0.292519
  • 2018-09-10 06:57:12 KST -0.313123
  • 2018-09-09 06:51:12 KST -0.912683
  • 2018-09-09 06:22:16 KST -0.879888
  • 2018-09-08 06:57:33 KST -0.249938
  • Average -0.1034192

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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.