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://yeyak.asan.go.kr server time check history

  • 2018-08-28 08:21:10 KST -1.567573
  • 2018-07-20 05:12:14 KST -1.217593
  • 2018-05-17 06:47:58 KST -1.474909
  • 2018-05-06 17:54:19 KST -3.286901
  • 2018-04-27 06:24:20 KST -1.074149
  • 2018-04-21 06:42:02 KST -1.062811
  • 2018-04-06 21:36:21 KST -4.878887
  • 2018-03-22 12:08:32 KST -1.577747
  • 2018-03-18 00:05:04 KST -0.944152
  • 2018-03-17 23:58:44 KST -5.724900
  • Average -2.2809622

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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.