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/1FAIpQLScS6SR6hk1HwoxF5pR8UkabFtYY8T2nh7jpXxQkg5W9s-jw2A/closedform server time check history

  • 2022-06-23 20:40:00 KST 0.038579
  • 2022-01-19 08:37:10 KST 0.084547
  • 2021-05-22 10:03:39 KST 0.074982
  • 2018-06-15 12:44:39 KST 0.029759
  • 2018-05-09 17:46:03 KST 0.094246
  • 2018-04-29 00:23:56 KST 0.013832
  • 2018-04-21 23:19:07 KST 0.008073
  • 2018-04-21 16:59:34 KST 0.144634
  • 2018-04-09 20:03:09 KST 0.064374
  • 2018-04-06 19:19:27 KST 0.016733
  • Average 0.0569759

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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.