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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https://samhyun.schm.co.kr/supplement/course_chart.php?USER_NO=2228 server time check history

  • 2021-06-29 05:51:58 KST -4.853639
  • 2021-06-23 04:00:41 KST -27.831645
  • 2020-04-26 20:22:03 KST -24.681934
  • 2019-10-09 13:56:21 KST -3.093817
  • 2018-08-26 01:25:41 KST -0.806211
  • 2018-08-25 08:59:37 KST -0.725310
  • 2018-08-25 07:57:10 KST -0.750567
  • 2018-08-25 07:42:19 KST -0.763590
  • 2018-07-07 14:17:46 KST -0.927644
  • 2018-07-06 13:59:14 KST -0.845830
  • Average -6.5280187

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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.