NKO Atomic Clock

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

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우리말 English

http://sugang.cu.ac.kr/sugang/ server time check history

  • 2022-08-24 09:29:57 KST -0.022950
  • 2022-08-24 09:28:51 KST -0.023856
  • 2022-08-23 09:26:59 KST -0.073010
  • 2022-02-25 09:18:54 KST -0.037716
  • 2022-02-23 04:34:08 KST -0.055790
  • 2022-02-16 09:24:35 KST -0.014335
  • 2022-02-15 09:28:48 KST -0.007836
  • 2022-02-15 09:20:17 KST -0.073283
  • 2022-02-15 09:16:56 KST -0.023715
  • 2022-02-15 09:10:24 KST 0.015241
  • Average -0.031725

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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.