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://saint.sogang.ac.kr/irj/portal server time check history

  • 2019-08-11 01:22:20 KST -0.055411
  • 2019-02-22 00:09:59 KST 0.018981
  • 2019-02-21 18:18:41 KST -0.028457
  • 2019-02-13 10:29:58 KST -0.004868
  • 2019-02-13 09:09:31 KST 0.007841
  • 2019-02-12 19:41:14 KST 0.016565
  • 2018-08-06 09:24:39 KST -0.056468
  • 2018-05-23 15:15:25 KST -0.001855
  • 2018-05-20 13:59:06 KST -0.056071
  • 2018-05-10 14:51:10 KST -0.051534
  • Average -0.0211277

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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.