NKO Atomic Clock

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


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http://sugang.yu.ac.kr/index_sugang.html server time check history

  • 2025-09-06 01:53:14 KST -0.032748
  • 2025-09-03 08:11:21 KST -0.043316
  • 2025-08-31 05:23:18 KST -0.025709
  • 2025-08-29 02:58:56 KST 0.007482
  • 2025-08-26 13:57:16 KST -0.002489
  • 2025-08-22 13:06:31 KST -0.004044
  • 2025-08-20 09:26:21 KST -0.031339
  • 2025-08-18 07:09:03 KST -0.012911
  • 2025-08-16 06:56:55 KST -0.062366
  • 2025-08-14 06:12:26 KST -0.071852
  • Average -0.0279292

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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.

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.