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/1FAIpQLSdhJLmEE56FECR3Q3WaUdYR2FxM5I9wGEkXS2V-69i74KHvPw/viewform server time check history

  • 2023-12-01 18:17:51 KST 0.097813
  • 2023-11-24 19:53:29 KST 0.094327
  • 2023-11-17 22:55:15 KST 0.000770
  • 2023-11-17 22:52:59 KST 0.089845
  • 2023-10-28 19:56:48 KST 0.064005
  • 2023-10-28 19:53:09 KST 0.047305
  • 2023-10-25 19:56:06 KST 0.065991
  • 2023-10-08 22:53:46 KST 0.064037
  • 2023-08-20 19:52:31 KST 0.147480
  • 2023-08-20 19:50:36 KST 0.040470
  • Average 0.0712043

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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.