NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

☞ Install NKO Atomic Clock(Android app) at Google Playstore
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우리말 English

https://docs.google.com/forms/d/e/1FAIpQLScFQC89GQsYzxVAFlsKnM7sispu3zji3TxPhwwcn2RZttxHsg/viewform server time check history

  • 2018-07-27 18:18:17 KST 0.055818
  • 2018-05-17 10:54:28 KST -0.018514
  • 2018-03-02 04:48:55 KST 0.188805
  • 2018-01-27 17:59:18 KST -0.024532
  • 2018-01-27 17:58:15 KST 0.010142
  • 2018-01-27 17:56:36 KST 0.018481
  • 2018-01-27 17:38:46 KST 0.120002
  • Average 0.050028857142857

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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.