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://lib.hsc.ac.kr/ArgosCMS2/Argos.do?mid=GSTCalendar server time check history

  • 2020-04-16 12:36:24 KST -4.710228
  • 2019-11-20 18:54:40 KST -3.501842
  • 2019-10-09 23:54:14 KST -3.873193
  • 2019-04-17 23:59:12 KST -14.763537
  • 2019-04-17 23:54:25 KST -14.700558
  • 2019-04-15 01:12:44 KST -9.284831
  • 2019-04-14 23:51:15 KST -9.814231
  • 2019-04-12 23:58:26 KST -6.490337
  • 2019-04-12 01:15:38 KST -5.376428
  • 2019-04-11 23:58:08 KST -5.049965
  • Average -7.756515

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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.