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://nko.kr/?url=http://ticket.yes24.com/pages/perf/detail/detail.aspx?idperf=21754 server time check history

  • 2020-05-17 07:33:47 KST -0.035015
  • 2020-05-15 18:30:16 KST 0.141949
  • 2020-03-20 07:12:59 KST 0.031461
  • 2020-03-19 08:04:29 KST 0.009022
  • 2020-03-13 22:27:06 KST -0.020899
  • 2020-03-13 05:25:20 KST 0.053484
  • 2020-03-08 20:07:13 KST -0.037523
  • 2020-03-07 09:18:50 KST 0.008177
  • 2020-02-25 21:23:41 KST 0.087196
  • 2020-02-18 14:42:24 KST 0.038569
  • Average 0.0276421

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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.