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

  • 2020-09-07 16:59:26 KST 0.007393
  • 2020-09-07 16:56:26 KST -0.009125
  • 2020-09-07 16:53:54 KST -0.053540
  • 2020-09-07 16:52:42 KST -0.038327
  • 2020-09-07 16:48:24 KST -0.054981
  • 2020-09-07 16:46:53 KST -0.021763
  • 2020-09-07 16:40:18 KST -0.016610
  • 2020-09-07 16:36:30 KST -0.009909
  • 2020-08-21 09:59:01 KST -0.046932
  • 2020-08-21 09:57:09 KST 0.009947
  • Average -0.0233847

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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.