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/11vRHTGi8W4w02DggHrWsr6hn5n-BRbBtvO5ECVKuCME/viewform?edit_requested=true server time check history

  • 2022-11-24 12:45:25 KST -0.052020
  • 2021-09-26 19:47:24 KST -0.033884
  • 2021-09-26 19:38:55 KST 0.190520
  • 2021-08-19 08:53:56 KST 0.011646
  • 2021-02-18 08:54:49 KST 0.008904
  • 2021-01-11 05:52:22 KST 0.141117
  • 2020-12-08 09:59:47 KST 0.136852
  • 2020-12-04 13:58:55 KST 0.180023
  • 2020-12-01 17:57:25 KST 0.151591
  • 2020-11-30 19:39:35 KST 0.150553
  • Average 0.0885302

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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.