NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

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http://sugang.ewha.ac.kr/esug/servlet/sugb_slog2 server time check history

  • 2022-06-07 23:20:04 KST -0.031878
  • 2021-12-04 09:50:51 KST 0.012816
  • 2021-09-28 09:50:32 KST 0.012674
  • 2021-05-29 21:19:21 KST -0.067748
  • 2021-03-26 15:26:43 KST -0.063332
  • 2020-09-06 08:49:43 KST -0.064949
  • 2020-03-24 16:49:07 KST -0.034644
  • 2020-02-19 03:47:42 KST -0.025371
  • 2019-11-22 10:30:15 KST -0.067798
  • 2019-09-05 06:26:20 KST -0.018576
  • Average -0.0348806

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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.