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://after.daeil.or.kr/app/student/consent.php server time check history

  • 2019-07-13 23:59:07 KST -2.001429
  • 2019-07-13 23:55:55 KST -2.003710
  • 2019-05-16 00:03:58 KST -2.140059
  • 2019-05-11 23:53:45 KST -2.579991
  • 2018-12-14 23:16:15 KST -6.569068
  • 2018-10-21 20:09:38 KST -2.079057
  • 2018-10-19 23:47:45 KST -2.127626
  • 2017-10-20 23:59:30 KST -2.811109
  • 2017-10-20 23:58:20 KST -2.781724
  • 2017-10-20 23:57:09 KST -2.808041
  • Average -2.7901814

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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.