NKO Atomic Clock

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


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우리말 English

https://sugang.snu.ac.kr/ server time check history

  • 2026-07-09 16:48:48 KST -0.061479
  • 2026-06-10 00:30:04 KST -0.041791
  • 2026-05-19 14:40:26 KST -0.066680
  • 2026-05-13 14:34:39 KST -0.010326
  • 2026-05-11 08:27:54 KST -0.064633
  • 2026-05-02 03:54:45 KST 0.029701
  • 2026-03-30 21:01:09 KST -0.018290
  • 2026-03-18 15:37:16 KST -0.040283
  • 2026-03-03 08:29:16 KST -0.063831
  • 2026-03-03 08:27:20 KST -0.029767
  • Average -0.0367379

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Popular checks

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.

Information

# 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.