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://dcec.dongduk.ac.kr server time check history

  • 2018-05-20 15:38:16 KST -14.868276
  • 2018-05-19 05:34:09 KST -12.527653
  • 2018-05-10 16:08:35 KST -25.893261
  • 2018-05-09 21:24:43 KST -24.747279
  • 2018-04-30 05:06:28 KST -11.453499
  • 2018-04-27 08:15:23 KST -7.644760
  • 2018-04-22 20:09:40 KST -1.048169
  • 2018-04-15 00:46:01 KST -10.407781
  • 2018-04-03 01:07:30 KST -3.324506
  • 2018-03-30 03:27:21 KST -7.725985
  • Average -11.9641169

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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.