NKO Atomic Clock

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

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우리말 English

https://ncvr.kdca.go.kr/cobk/index.html server time check history

  • 2021-08-09 20:04:12 KST -0.066004
  • 2021-08-09 19:46:16 KST -0.059217
  • 2021-07-13 23:58:45 KST -1626188326.758100
  • 2021-07-11 23:59:51 KST 71.535143
  • 2021-07-11 23:10:42 KST 74.749764
  • 2021-07-11 23:09:19 KST 93.879299
  • 2021-07-11 20:33:30 KST 98.171143
  • 2021-07-07 23:57:48 KST 144.960156
  • 2021-05-13 00:39:14 KST 61.438903
  • 2021-05-12 23:56:33 KST 97.354584
  • Average -162618768.47943

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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.