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
Chatroom by domain
우리말 English

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

  • 2018-05-17 08:01:12 KST 0.609344
  • 2018-03-12 06:23:19 KST 37.490347
  • 2018-01-20 22:19:07 KST 9.977251
  • 2018-01-20 21:44:29 KST 9.897579
  • 2017-02-09 08:57:11 KST 1.140345
  • 2017-02-08 08:36:13 KST -0.116025
  • 2016-09-08 13:39:55 KST 10.655764
  • 2016-08-17 15:40:47 KST 15.183709
  • 2016-08-03 08:58:35 KST 81.757567
  • 2016-08-03 08:45:45 KST 81.658725
  • Average 24.8254606

Recent view

Popular checks

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.