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://sugang.snu.ac.kr server time check history

  • 2018-11-21 14:30:50 KST -0.073481
  • 2018-11-15 07:56:27 KST -0.034796
  • 2018-11-11 01:33:09 KST 0.005582
  • 2018-11-11 01:09:43 KST -0.019871
  • 2018-11-11 00:53:44 KST 0.020151
  • 2018-11-08 13:20:49 KST 0.001195
  • 2018-11-08 07:58:45 KST -0.015885
  • 2018-11-08 07:57:36 KST -0.074651
  • 2018-11-08 07:56:23 KST -0.019433
  • 2018-11-08 07:54:51 KST -0.029460
  • Average -0.0240649

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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.