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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https://uwins.ulsan.ac.kr server time check history

  • 2020-05-19 16:04:57 KST -0.837771
  • 2020-05-19 15:17:40 KST -0.006782
  • 2019-10-24 21:37:33 KST 16.153970
  • 2019-10-23 04:41:44 KST 18.399821
  • 2019-09-04 08:59:31 KST 16.833362
  • 2019-08-22 06:15:18 KST -27.457565
  • 2019-02-11 08:40:08 KST -0.303944
  • 2019-02-09 02:11:06 KST -0.401846
  • 2017-08-07 10:41:58 KST -0.228123
  • 2017-08-07 10:40:54 KST -0.167589
  • Average 2.1983533

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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.