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/1FAIpQLSeaMp2f_mo5j_hGcGSZMgeH2zYob92CSGeyKLCSDyBUMXV3xg/viewform server time check history

  • 2022-01-17 11:09:37 KST -0.005570
  • 2021-10-29 10:41:30 KST 0.048482
  • 2018-05-18 12:35:16 KST 0.079924
  • 2018-05-10 18:48:24 KST 0.015910
  • 2018-05-02 02:55:23 KST 0.027230
  • 2018-04-20 22:56:37 KST 0.025121
  • Average 0.0318495

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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.