NKO Atomic Clock

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

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http://sugang.hongik.ac.kr/cn1000.jsp server time check history

  • 2023-02-24 08:20:50 KST 0.003240
  • 2022-08-30 20:15:31 KST -0.059161
  • 2022-05-15 10:29:53 KST -0.079892
  • 2021-12-04 10:32:51 KST -0.048208
  • 2021-05-20 04:08:08 KST -0.040504
  • 2021-03-26 15:25:36 KST -0.017413
  • 2019-02-26 20:24:40 KST -0.024231
  • 2019-02-26 08:46:38 KST -0.039343
  • 2019-02-25 08:03:21 KST -0.021631
  • 2019-02-25 08:00:22 KST -0.057887
  • Average -0.038503

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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.