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://ecus.cha.ac.kr/ server time check history

  • 2018-02-13 09:56:11 KST -1.008277
  • 2018-02-11 12:54:28 KST -14.172924
  • 2016-11-22 11:50:50 KST -2.787919
  • 2016-09-07 08:52:44 KST -2.580695
  • 2016-09-07 08:49:55 KST -2.627757
  • 2016-09-07 08:48:52 KST -2.892440
  • 2016-09-07 08:39:15 KST -2.753571
  • Average -4.1176547142857

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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.