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://portal.hanyang.ac.kr/sugang/sulg.do server time check history

  • 2018-12-10 09:49:35 KST -0.036325
  • 2018-12-09 19:17:43 KST -0.095348
  • 2018-12-06 16:56:21 KST -0.018788
  • 2018-12-06 16:36:46 KST -0.030903
  • 2018-11-27 19:41:16 KST -0.062984
  • 2018-11-19 09:50:04 KST -0.027698
  • 2018-11-19 09:48:58 KST -0.004336
  • 2018-11-19 09:46:13 KST -0.001657
  • 2018-11-19 09:33:33 KST -0.009086
  • 2018-11-11 01:32:31 KST -0.028086
  • Average -0.0315211

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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.