NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

Chatroom by domain
우리말 English

http://11st.co.kr server time check history

  • 2021-10-20 09:47:44 KST -0.057550
  • 2021-10-19 15:37:51 KST -0.034261
  • 2021-10-19 13:56:59 KST -0.022739
  • 2021-10-08 20:32:04 KST -0.019306
  • 2021-09-30 23:55:23 KST -0.063619
  • 2021-09-30 23:36:57 KST 0.006290
  • 2021-07-11 15:59:27 KST -0.005169
  • 2021-04-29 09:59:30 KST -0.031452
  • 2021-03-15 14:57:34 KST -0.014704
  • 2021-01-28 00:10:20 KST 0.042594
  • Average -0.0199916

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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.