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://yscec.yonsei.ac.kr/mod/jinotechboard/content.php server time check history

  • 2019-10-02 19:52:43 KST -0.047442
  • 2019-10-02 19:51:09 KST -0.056209
  • 2019-10-02 19:49:02 KST -0.084069
  • 2019-10-02 19:47:52 KST -0.021135
  • 2019-09-27 07:59:10 KST -0.037779
  • 2019-09-27 07:58:06 KST -0.057572
  • 2019-09-27 07:56:18 KST -0.038258
  • 2019-09-16 20:57:27 KST -0.058996
  • 2019-09-16 20:50:28 KST -0.052495
  • 2019-09-10 19:58:24 KST -0.044138
  • Average -0.0498093

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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.