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
Chatroom by domain
우리말 English

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

  • 2019-10-04 07:16:34 KST -0.074326
  • 2019-08-11 16:56:11 KST -0.020012
  • 2019-04-23 19:45:56 KST -0.070657
  • 2019-04-23 12:49:47 KST -0.077489
  • 2019-04-23 12:43:28 KST -0.065615
  • 2019-04-12 10:39:58 KST -0.024683
  • 2019-04-11 16:56:53 KST -0.001186
  • 2019-04-11 16:47:12 KST -0.024357
  • 2019-04-11 16:29:43 KST -0.047816
  • 2019-04-11 15:58:51 KST -0.035374
  • Average -0.0441515

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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.