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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우리말 English

http://www.historyexam.go.kr/main/mainPage.do server time check history

  • 2021-01-13 13:27:34 KST -0.010574
  • 2021-01-12 12:27:55 KST -0.298304
  • 2021-01-12 05:53:47 KST -0.034914
  • 2021-01-08 00:53:13 KST -0.066015
  • 2020-10-12 13:14:47 KST -0.051339
  • 2020-08-24 15:17:48 KST 0.029083
  • 2020-08-24 15:09:46 KST -0.328113
  • 2020-07-13 09:59:46 KST -0.032525
  • 2020-07-07 08:29:35 KST -0.061411
  • 2020-05-26 08:47:55 KST -0.735596
  • Average -0.1589708

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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.