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://sugang.sangji.ac.kr/index_http.html server time check history

  • 2020-08-18 09:54:20 KST -1597712060.930800
  • 2020-08-13 09:38:38 KST -4.081295
  • 2020-03-19 10:47:54 KST -2.552796
  • 2020-03-17 08:58:02 KST -3.241977
  • 2020-03-17 07:45:24 KST -3.124582
  • 2020-03-17 00:53:24 KST -2.201641
  • 2020-03-05 09:54:22 KST -42.144166
  • 2020-03-05 09:48:08 KST -42.149503
  • 2020-03-05 09:29:31 KST -42.149781
  • 2020-02-05 07:53:23 KST -5.477937
  • Average -159771220.80545

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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.