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

  • 2019-09-10 19:58:24 KST -0.044138
  • 2019-09-10 19:55:41 KST -0.042588
  • 2019-09-10 19:54:02 KST -0.044375
  • 2019-09-10 19:46:06 KST -0.083874
  • 2019-09-10 19:41:00 KST -0.014322
  • 2019-08-15 12:50:33 KST -0.007720
  • 2019-03-13 19:47:00 KST -0.123529
  • 2018-09-12 20:59:00 KST -0.082918
  • 2018-09-12 20:55:22 KST 0.037947
  • 2018-09-12 20:48:52 KST -0.107730
  • Average -0.0513247

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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.