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://docs.google.com/forms/d/e/1FAIpQLScuqdoiky1EXrj-Xq-cxJrXBvK5AENnZbgBvREvporZsmNMfw/viewform server time check history

  • 2023-11-20 18:08:58 KST 0.010381
  • 2023-11-20 13:49:54 KST 0.129485
  • 2023-11-16 16:28:57 KST 0.058768
  • 2023-11-08 13:46:27 KST 0.085214
  • 2023-11-08 13:45:14 KST 0.034953
  • 2023-11-08 13:43:53 KST 0.071156
  • Average 0.064992833333333

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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.