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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http://www.11st.co.kr/html/mainexp.html? server time check history

  • 2019-07-11 10:28:08 KST -0.014091
  • 2018-08-28 03:00:21 KST 0.001699
  • 2018-05-19 03:54:53 KST -0.011196
  • 2018-05-06 16:46:23 KST -0.059596
  • 2018-05-01 23:17:18 KST -0.014798
  • 2018-04-21 13:50:39 KST -0.058906
  • 2018-04-14 19:29:28 KST -0.042773
  • 2018-04-07 04:43:17 KST -0.047500
  • 2018-04-05 07:15:26 KST -0.053901
  • 2018-04-01 04:45:20 KST -0.077577
  • Average -0.0378639

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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.