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://www.gachon.ac.kr/main.jsp server time check history

  • 2019-07-11 00:41:21 KST -0.029216
  • 2019-04-29 13:38:41 KST -0.077918
  • 2018-12-25 23:51:46 KST -0.018823
  • 2017-08-10 08:45:50 KST -273.657253
  • 2017-08-10 08:42:50 KST -273.671566
  • 2017-08-09 08:50:50 KST -178.263158
  • 2017-08-09 08:49:08 KST -178.257458
  • 2017-08-09 08:31:42 KST -269.677771
  • 2016-03-02 08:43:13 KST -192.882740
  • 2016-03-02 08:11:16 KST -127.628354
  • Average -149.4164257

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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.