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://smsg.smuc.ac.kr/sugang/https://smsg.smuc.ac.kr/sugang/ server time check history

  • 2018-08-26 08:31:52 KST 0.006822
  • 2018-08-12 10:24:33 KST 0.011917
  • 2018-05-17 05:54:52 KST -0.036478
  • 2018-05-10 23:34:47 KST 0.015573
  • 2018-05-06 08:45:41 KST 0.010089
  • 2018-05-02 18:37:43 KST 0.012188
  • 2018-04-29 08:30:10 KST -0.017249
  • 2018-04-17 05:12:15 KST -0.043226
  • 2018-04-09 04:05:21 KST -0.010852
  • 2018-04-07 07:57:42 KST 0.015855
  • Average -0.0035361

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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.