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.seoul.go.kr server time check history

  • 2020-04-09 21:21:15 KST -0.035323
  • 2020-04-09 16:11:59 KST -0.049197
  • 2019-10-09 22:46:46 KST -0.018896
  • 2019-09-13 09:19:10 KST -0.002673
  • 2019-09-04 23:36:45 KST -0.059645
  • 2018-10-30 09:43:12 KST -0.027582
  • 2018-10-30 09:41:13 KST -0.015464
  • 2016-01-19 09:01:56 KST -0.090612
  • 2016-01-19 08:56:10 KST -0.086739
  • 2016-01-19 08:34:17 KST -0.040210
  • Average -0.0426341

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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.