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://tis.dongduk.ac.kr:8088/index_sugang.html server time check history

  • 2020-09-02 13:57:00 KST -0.152497
  • 2020-08-24 13:58:42 KST -0.363673
  • 2020-08-24 13:57:29 KST -0.434019
  • 2020-08-24 13:56:17 KST -0.443598
  • 2020-08-24 13:55:00 KST -0.422223
  • 2020-08-24 13:49:17 KST -0.415026
  • 2020-08-24 13:48:03 KST -0.395846
  • 2020-08-24 13:46:13 KST -0.424153
  • 2020-08-24 13:40:45 KST -0.383106
  • 2020-08-24 13:35:49 KST -0.426400
  • Average -0.3860541

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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.