NKO Atomic Clock

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

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http://cafe.daum.net/IOIofficial server time check history

  • 2023-06-03 17:11:03 KST -0.020979
  • 2023-06-03 12:42:13 KST 0.001119
  • 2021-12-04 09:55:26 KST -0.026681
  • 2019-11-06 14:43:40 KST -0.047952
  • 2019-11-03 01:08:48 KST 0.004788
  • 2019-10-31 01:30:21 KST -0.002140
  • 2019-10-24 05:06:29 KST -0.045659
  • 2019-10-22 01:55:02 KST -0.028521
  • 2019-08-30 02:15:19 KST -0.029194
  • 2019-08-28 00:02:34 KST -0.028517
  • Average -0.0223736

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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.