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=7710 server time check history

  • 2019-12-14 18:54:18 KST -8.752490
  • 2018-05-22 11:20:13 KST -0.777151
  • 2018-05-21 10:46:04 KST -0.657482
  • 2018-05-04 05:58:17 KST -0.544217
  • 2018-04-30 23:24:10 KST -0.938064
  • 2018-04-21 13:45:13 KST -0.807382
  • 2018-04-03 16:23:34 KST -0.161784
  • 2018-03-22 11:05:20 KST -0.211134
  • 2018-03-10 19:13:05 KST -0.889287
  • 2018-03-10 19:05:33 KST -0.872587
  • Average -1.4611578

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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.