NKO Atomic Clock

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

Chatroom by domain
우리말 English

http://nko.kr/?url=https://ysweb.yonsei.ac.kr/websquare/websquare.jsp?w2xPath=/wq/sg_main.xml server time check history

  • 2022-09-26 10:42:05 KST 0.003206
  • 2022-09-24 03:50:56 KST 0.096276
  • 2022-09-23 19:35:46 KST -0.008866
  • 2022-09-23 06:42:15 KST 0.035342
  • 2022-07-17 02:17:33 KST 0.068157
  • 2022-07-16 14:17:26 KST -0.004316
  • 2022-07-15 18:01:33 KST 0.054884
  • 2022-06-16 12:23:48 KST 0.120170
  • 2022-06-03 20:22:19 KST 0.007213
  • 2022-05-25 12:08:50 KST 0.023937
  • Average 0.0396003

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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.