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://geoje.schm.co.kr/supplement/course_chart.php?USER_NO=7645 server time check history

  • 2018-07-25 05:07:44 KST -0.553282
  • 2018-06-15 12:35:10 KST -0.389383
  • 2018-05-03 21:58:54 KST -0.805142
  • 2018-05-03 02:42:58 KST -1.093068
  • 2018-04-17 07:20:12 KST -0.640868
  • 2018-04-03 05:02:18 KST -0.146078
  • 2018-03-28 06:01:41 KST -0.703056
  • 2018-03-21 03:30:15 KST -0.326429
  • 2018-03-10 19:57:20 KST -0.906545
  • 2018-03-10 18:19:47 KST -0.851675
  • Average -0.6415526

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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.