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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우리말 English

http://www.sacpta.or.kr/ server time check history

  • 2018-08-05 08:52:10 KST -2.807550
  • 2018-06-23 05:17:35 KST -3.752030
  • 2018-06-18 09:59:35 KST -1.872293
  • 2018-01-23 09:58:49 KST -0.872534
  • 2017-12-26 09:58:34 KST -0.540798
  • 2017-12-04 09:56:21 KST -0.381410
  • 2017-10-23 15:58:44 KST -0.348720
  • 2017-10-17 15:57:45 KST -0.228768
  • 2017-10-16 15:57:18 KST -1.096232
  • 2017-10-16 13:49:11 KST -1.065750
  • Average -1.2966085

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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.