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/1FAIpQLSesaG7pH3_kxUZqTt01XYKNgTiNxMP_uIFDb1cS-nQfpJjk9g/viewform server time check history

  • 2023-11-19 20:59:17 KST 0.095358
  • 2023-09-24 02:58:40 KST 0.108467
  • 2023-09-24 00:58:39 KST 0.028596
  • 2023-09-10 10:11:49 KST 0.119626
  • 2023-09-09 17:56:09 KST -0.076392
  • 2023-09-09 17:53:32 KST 0.055303
  • 2023-08-28 13:04:24 KST 0.131226
  • 2023-08-16 01:55:54 KST 0.044245
  • 2023-08-15 22:12:34 KST 0.123232
  • 2023-08-15 19:55:32 KST 0.036848
  • Average 0.0666509

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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.