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://www.humanbenchmark.com/tests/reactiontime server time check history

  • 2018-05-20 03:58:13 KST 26.187728
  • 2018-04-25 10:28:47 KST 13.748007
  • 2018-04-20 19:05:32 KST 11.492604
  • 2018-04-20 08:51:06 KST 11.322621
  • 2018-04-10 02:10:58 KST 6.564639
  • 2018-04-07 01:39:08 KST 4.997782
  • 2018-04-05 04:27:02 KST 3.778658
  • 2018-04-03 03:36:40 KST 2.940162
  • 2018-04-03 00:03:47 KST 2.802489
  • 2018-03-30 09:21:26 KST 0.913016
  • Average 8.4747706

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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.