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://bugil.schm.co.kr/supplement/course_chart.php?USER_NO=4190 server time check history

  • 2020-05-21 05:41:40 KST -18.375290
  • 2019-10-17 00:35:10 KST -9.691243
  • 2018-06-15 08:50:48 KST -0.394354
  • 2018-05-14 14:57:19 KST -0.367431
  • 2018-05-11 00:40:57 KST -1.017004
  • 2018-05-01 12:16:21 KST -0.413046
  • 2018-05-01 10:06:30 KST -0.494071
  • 2018-04-18 04:31:16 KST -0.264372
  • 2018-04-06 17:16:20 KST -0.623450
  • 2018-03-28 11:38:48 KST -0.699805
  • Average -3.2340066

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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.