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://saint.ssu.ac.kr/irj/portal server time check history

  • 2019-09-02 09:46:03 KST -0.046558
  • 2019-08-22 09:59:36 KST -0.003601
  • 2019-08-22 09:58:35 KST -0.322411
  • 2019-08-22 09:57:34 KST -0.042792
  • 2019-08-21 09:58:36 KST -0.031343
  • 2019-08-21 09:10:19 KST -0.175846
  • 2019-08-21 09:03:47 KST -0.028496
  • 2019-08-20 09:59:09 KST -0.014664
  • 2019-08-20 09:57:54 KST -0.000889
  • 2019-08-20 09:47:15 KST -0.002210
  • Average -0.066881

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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.