NKO Atomic Clock

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

☞ Install NKO Atomic Clock(Android app) at Google Playstore
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우리말 English

https://portal.catholic.ac.kr/wps/portal server time check history

  • 2017-08-28 08:45:01 KST 1.439641
  • 2017-08-10 08:39:51 KST 2.423783
  • 2017-08-08 21:54:18 KST 0.829670
  • 2017-08-08 11:46:38 KST 0.358037
  • 2017-08-08 11:44:51 KST 0.139667
  • 2017-08-07 10:53:46 KST -0.809368
  • 2017-08-07 10:43:59 KST -0.916376
  • 2017-08-07 10:40:55 KST -0.836016
  • 2017-03-02 08:52:42 KST 10.685277
  • 2017-02-21 08:43:56 KST 0.331051
  • Average 1.3645366

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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.