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

  • 2020-05-08 07:46:55 KST -0.057804
  • 2020-05-08 07:42:30 KST 0.002332
  • 2020-05-08 07:41:17 KST -0.040776
  • 2020-05-07 07:58:11 KST -0.001631
  • 2020-05-07 07:56:35 KST 0.013047
  • 2020-05-07 07:51:14 KST -0.059804
  • 2020-05-07 07:49:44 KST -0.013811
  • 2020-05-07 07:45:39 KST -0.051393
  • 2020-05-07 07:37:10 KST -0.024120
  • 2020-04-17 08:53:30 KST -0.036437
  • Average -0.0270397

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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.