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://www.cjsisul.or.kr server time check history

  • 2020-12-18 23:21:26 KST -0.002501
  • 2020-12-18 23:06:09 KST -0.039192
  • 2020-10-18 18:21:47 KST -0.048412
  • 2020-05-04 10:21:39 KST -0.042576
  • 2020-05-04 10:12:08 KST -0.053760
  • 2020-03-26 13:43:34 KST -0.042337
  • 2019-10-21 15:40:30 KST -0.048853
  • 2019-10-20 04:19:49 KST 0.006599
  • 2018-08-31 21:32:42 KST -0.441684
  • 2018-05-15 23:14:01 KST 0.084373
  • Average -0.0628343

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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.