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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http://portal.catholic.ac.kr server time check history

  • 2017-08-10 08:38:32 KST 2.481407
  • 2017-08-10 08:37:30 KST 2.418588
  • 2016-08-05 08:49:18 KST 1.072004
  • 2016-08-03 08:38:25 KST 81.761147
  • 2016-08-03 08:33:17 KST 81.772256
  • 2016-02-03 08:57:29 KST 7.694770
  • 2016-02-03 08:24:31 KST 8.097127
  • 2016-02-02 08:24:19 KST 6.857320
  • 2015-08-31 08:55:18 KST 25.312286
  • 2015-08-07 08:49:41 KST -61.383777
  • Average 15.6083128

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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.