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

  • 2022-05-16 08:19:42 KST -0.048965
  • 2022-05-13 08:29:11 KST 0.408401
  • 2022-05-13 08:27:57 KST 0.412857
  • 2022-05-13 08:26:49 KST 0.407598
  • 2022-05-13 08:24:23 KST 0.475053
  • 2022-05-13 08:22:48 KST 0.463603
  • 2022-05-13 08:21:33 KST 0.521467
  • 2022-05-13 08:20:06 KST 0.513227
  • 2022-05-13 08:18:48 KST 0.537086
  • 2022-05-13 08:17:35 KST 0.547122
  • Average 0.4237449

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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.