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://smsg.smuc.ac.kr:9100/sugang/ server time check history

  • 2019-12-12 15:37:34 KST -0.049734
  • 2018-05-19 05:22:26 KST -0.017350
  • 2018-05-16 00:28:47 KST -0.037034
  • 2018-05-08 07:10:03 KST -0.056343
  • 2018-05-01 11:26:56 KST -0.000686
  • 2018-04-25 00:52:09 KST -0.088703
  • 2018-04-17 02:34:03 KST -0.039162
  • 2018-04-05 05:59:30 KST -0.075438
  • 2018-04-02 07:25:33 KST -0.041960
  • 2018-03-28 18:16:21 KST -0.041766
  • Average -0.0448176

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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.