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

http://sugang.jj.ac.kr/index.html server time check history

  • 2018-11-15 16:05:21 KST -0.020026
  • 2018-10-25 17:35:59 KST 0.008639
  • 2018-08-02 10:57:11 KST -0.030707
  • 2018-08-02 10:55:27 KST -0.004097
  • 2018-08-01 10:58:10 KST 70.281208
  • 2018-08-01 10:54:06 KST 70.304300
  • 2018-08-01 10:52:04 KST 70.441276
  • 2018-08-01 10:45:18 KST 70.273018
  • 2018-08-01 10:40:45 KST 70.253761
  • 2018-08-01 10:34:08 KST 70.259558
  • Average 42.176693

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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.