NKO Atomic Clock

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

Chatroom by domain
우리말 English

http://rru.kr/ server time check history

  • 2021-09-11 22:45:21 KST -0.304970
  • 2021-09-08 05:59:39 KST -0.578959
  • 2021-09-04 14:33:01 KST 0.056961
  • 2021-09-01 01:12:50 KST -0.469235
  • 2021-08-28 14:06:51 KST -0.154218
  • 2021-08-24 11:36:43 KST 0.374671
  • 2021-08-23 02:31:26 KST -0.741948
  • 2021-08-21 08:05:50 KST 0.313215
  • 2021-08-20 03:23:45 KST 0.551375
  • 2021-08-18 23:34:38 KST 0.121897
  • Average -0.0831211

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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.