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

  • 2020-06-08 13:49:25 KST -0.588031
  • 2020-03-30 13:50:16 KST -0.110449
  • 2020-02-27 13:59:04 KST -0.335510
  • 2020-02-27 13:57:28 KST -0.315611
  • 2020-02-27 13:53:58 KST -0.316573
  • 2020-02-27 13:50:06 KST -0.308708
  • 2020-02-27 13:43:05 KST -0.307438
  • 2020-02-27 13:33:29 KST -0.379728
  • 2020-02-27 13:32:05 KST -0.313934
  • 2020-02-27 13:27:00 KST -0.370052
  • Average -0.3346034

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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.