NKO Atomic Clock

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

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우리말 English

http://sugang.gnu.ac.kr server time check history

  • 2021-10-15 09:02:52 KST -0.053658
  • 2021-09-04 15:42:44 KST -0.050375
  • 2021-07-18 13:05:12 KST -0.065286
  • 2021-07-18 08:32:17 KST -0.044468
  • 2021-01-18 17:09:52 KST -0.038974
  • 2020-02-13 08:28:36 KST -0.025258
  • 2020-02-13 08:23:51 KST -0.051174
  • 2020-02-13 01:22:51 KST -0.067365
  • 2020-02-12 23:03:02 KST 0.015545
  • 2019-11-06 14:52:07 KST -0.076359
  • Average -0.0457372

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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.