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.snu.ac.kr server time check history

  • 2023-01-26 13:48:39 KST -0.033142
  • 2023-01-21 01:29:33 KST -0.029793
  • 2023-01-10 23:10:33 KST -0.054909
  • 2022-11-04 21:35:17 KST -0.021620
  • 2022-11-04 10:20:09 KST -0.012732
  • 2022-11-04 09:54:49 KST -0.045261
  • 2022-11-04 08:47:03 KST -0.061854
  • 2022-11-04 08:28:28 KST -0.054384
  • 2022-11-04 08:25:05 KST -0.041443
  • 2022-11-04 08:17:45 KST -0.050744
  • Average -0.0405882

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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.