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

  • 2021-09-06 09:58:24 KST 0.216924
  • 2021-09-01 12:59:32 KST -0.003860
  • 2021-09-01 09:54:25 KST 0.035659
  • 2021-09-01 09:40:43 KST 0.154630
  • 2021-09-01 09:09:07 KST -0.088787
  • 2021-09-01 08:57:04 KST -0.150050
  • 2021-09-01 08:48:49 KST -0.097447
  • 2021-08-21 12:49:34 KST -0.005227
  • 2021-08-20 08:28:33 KST -0.055625
  • 2021-08-20 08:26:44 KST -0.037950
  • Average -0.0031733

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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.