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

  • 2021-02-23 09:48:21 KST 0.006262
  • 2020-10-30 15:53:22 KST -0.023227
  • 2020-10-22 23:57:14 KST -0.048586
  • 2020-07-13 04:43:54 KST -0.042132
  • 2019-06-18 10:50:50 KST -0.022275
  • 2019-06-18 10:44:01 KST -0.004480
  • 2019-06-18 10:42:57 KST -0.020495
  • 2019-04-11 11:59:45 KST -0.026881
  • 2018-11-06 11:36:21 KST -0.059212
  • 2018-08-17 23:53:39 KST -0.026209
  • Average -0.0267235

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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.