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://www.seoultech.ac.kr server time check history

  • 2019-02-11 08:58:29 KST -0.060961
  • 2019-02-11 08:55:44 KST -0.029297
  • 2019-02-11 08:52:02 KST -0.064249
  • 2019-02-11 08:46:06 KST -0.008078
  • 2018-06-25 22:07:46 KST -0.027621
  • 2018-05-10 20:59:30 KST -0.003817
  • 2018-05-03 04:01:50 KST 0.009490
  • 2018-04-25 03:41:26 KST -0.047570
  • 2018-04-25 01:25:11 KST -0.046296
  • 2018-04-17 05:17:56 KST -0.048686
  • Average -0.0327085

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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.