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.cu.ac.kr/sugang/ server time check history

  • 2023-08-25 11:26:46 KST -0.035901
  • 2023-08-25 10:27:56 KST -0.033009
  • 2023-08-23 15:33:15 KST -0.009002
  • 2023-08-23 14:28:45 KST -0.055797
  • 2023-08-23 13:29:33 KST 0.000504
  • 2023-08-23 12:29:28 KST 0.017697
  • 2023-08-23 11:32:56 KST -0.059360
  • 2023-08-23 10:27:51 KST -0.050574
  • 2023-08-23 09:28:04 KST 0.010617
  • 2023-08-23 09:26:17 KST -0.005340
  • Average -0.0220165

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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.