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://sugang.skku.edu/skku/ server time check history

  • 2021-03-01 20:41:06 KST -0.037032
  • 2021-03-01 20:34:34 KST -0.039448
  • 2021-02-25 07:48:35 KST 0.005706
  • 2021-02-25 07:37:01 KST 0.006528
  • 2021-02-23 08:01:15 KST -0.797701
  • 2021-02-23 07:58:47 KST -0.024923
  • 2021-02-23 07:57:09 KST 0.020915
  • 2021-02-23 07:55:55 KST -0.005822
  • 2021-02-23 07:54:52 KST -0.041120
  • 2021-02-23 07:53:50 KST -0.015817
  • Average -0.0928714

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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.