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://busukang2.bu.ac.kr/index_sugang.html server time check history

  • 2021-02-23 15:05:56 KST -812.236265
  • 2021-02-23 09:02:59 KST -811.878928
  • 2021-02-23 09:00:59 KST -811.808485
  • 2021-02-10 08:25:37 KST -793.800065
  • 2021-02-08 09:28:16 KST -791.156891
  • 2021-02-08 07:36:01 KST -791.034306
  • 2020-08-12 09:26:56 KST -542.669254
  • 2020-08-12 09:22:54 KST -542.690991
  • 2020-08-12 09:16:30 KST -542.303261
  • 2020-08-11 09:20:31 KST -541.283834
  • Average -698.086228

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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.