NKO Atomic Clock

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

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http://eclass3.cau.ac.kr server time check history

  • 2022-05-21 21:48:10 KST -0.007320
  • 2022-05-21 19:57:27 KST -0.060046
  • 2022-05-20 15:58:55 KST -0.029121
  • 2022-05-20 11:59:59 KST -0.073216
  • 2022-05-18 16:38:25 KST -0.062193
  • 2022-05-18 13:18:01 KST -0.021741
  • 2022-05-16 23:49:47 KST -0.013224
  • 2022-05-16 23:26:18 KST -0.073843
  • 2022-05-16 12:58:02 KST -0.003532
  • 2022-05-14 23:49:44 KST -0.040945
  • Average -0.0385181

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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.