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://uis.sejong.ac.kr server time check history

  • 2020-08-20 09:55:15 KST 4.763212
  • 2020-08-20 09:33:33 KST 4.800887
  • 2020-08-20 09:10:09 KST 4.836211
  • 2020-08-20 09:08:31 KST 4.821443
  • 2020-08-18 09:52:05 KST 4.911403
  • 2020-04-02 15:45:11 KST 0.381291
  • 2020-04-02 14:38:56 KST 0.339347
  • 2020-02-18 09:58:16 KST 3.690417
  • 2020-02-18 09:51:22 KST 3.704504
  • 2020-02-18 09:40:16 KST 3.700947
  • Average 3.5949662

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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.