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://uportal.catholic.ac.kr server time check history

  • 2023-12-07 19:12:39 KST -10.112391
  • 2023-11-26 14:27:54 KST -7.263737
  • 2023-11-14 02:01:33 KST -136.429694
  • 2023-11-08 21:40:40 KST -65.892018
  • 2023-10-30 10:07:47 KST -18.594235
  • 2023-10-16 05:01:45 KST -2.020964
  • 2023-10-03 18:33:58 KST -9.742204
  • 2023-09-19 19:21:28 KST -10.154112
  • 2023-09-07 03:25:52 KST -0.590950
  • 2023-08-19 15:32:30 KST -21.570968
  • Average -28.2371273

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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.