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.sungkyul.ac.kr/jsp/al/al_sugang.jsp server time check history

  • 2021-02-23 13:13:42 KST -34.108549
  • 2021-02-23 13:12:37 KST -34.348104
  • 2021-01-31 03:03:12 KST -20.372932
  • 2020-11-11 22:30:41 KST 11.996648
  • 2020-08-24 13:26:43 KST -33.076896
  • 2020-08-20 13:27:35 KST -25.082484
  • 2020-05-18 06:19:04 KST -41.078407
  • 2020-03-17 13:28:59 KST -8.300675
  • 2020-02-18 13:18:35 KST 0.354921
  • 2019-10-22 05:37:28 KST -0.023780
  • Average -18.4040258

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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.