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://sugang.hannam.ac.kr/sugang/common/login.do?method=login server time check history

  • 2019-04-21 17:56:18 KST -16.039265
  • 2019-04-15 20:14:55 KST -14.328636
  • 2019-04-15 20:11:44 KST -14.354747
  • 2019-03-04 09:58:28 KST -2.469719
  • 2019-03-04 09:51:52 KST -2.398952
  • 2019-03-04 09:45:51 KST -2.386121
  • 2019-03-04 09:43:22 KST -2.453958
  • 2019-03-04 09:41:31 KST -2.441012
  • 2019-02-22 15:31:21 KST -59.603732
  • 2019-02-22 09:59:40 KST -59.655808
  • Average -17.613195

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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.