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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https://ysweb.yonsei.ac.kr/websquare/websquare.jsp?w2xPath=/wq/login/hakbu_login.xml server time check history

  • 2018-11-20 07:38:51 KST -0.205468
  • 2018-11-08 05:21:32 KST -10.334246
  • 2018-10-10 02:47:28 KST -11.385559
  • 2018-10-02 18:26:21 KST -10.515514
  • 2018-10-01 00:09:03 KST -7.797460
  • 2018-09-06 13:43:42 KST -0.070931
  • 2018-09-06 08:48:22 KST -0.281177
  • 2018-09-06 07:59:09 KST -0.308504
  • 2018-09-06 07:58:04 KST -0.304515
  • 2018-09-06 07:56:35 KST -0.251029
  • Average -4.1454403

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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.