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

https://gwangcheol.riroschool.kr/ server time check history

  • 2020-07-27 02:47:39 KST -0.049182
  • 2020-07-26 14:55:32 KST 0.008347
  • 2020-01-12 20:09:44 KST -0.059070
  • 2019-03-09 20:52:25 KST -11.459820
  • 2018-10-13 20:58:29 KST -4.865130
  • 2018-08-11 20:58:59 KST -2.237679
  • 2018-07-14 04:22:14 KST -1.257211
  • 2018-07-10 23:59:50 KST -1.418918
  • 2018-07-10 23:55:49 KST -1.142442
  • 2018-03-10 21:31:15 KST -0.031438
  • Average -2.2512543

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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.