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

  • 2023-01-30 11:58:08 KST -0.072785
  • 2023-01-29 23:57:06 KST 0.000858
  • 2023-01-29 11:58:23 KST -0.065669
  • 2023-01-28 11:56:56 KST -0.059633
  • 2023-01-27 23:59:49 KST -0.052329
  • 2023-01-27 11:58:26 KST -0.052309
  • 2023-01-26 11:57:11 KST -0.027691
  • 2023-01-25 11:58:14 KST -0.021530
  • 2023-01-24 11:58:56 KST -0.037976
  • 2023-01-24 11:57:38 KST -0.066309
  • Average -0.0455373

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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.