NKO Atomic Clock

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

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우리말 English

http://for-s.seoultech.ac.kr server time check history

  • 2021-02-25 07:52:27 KST -0.658121
  • 2021-02-25 06:29:23 KST -0.632139
  • 2021-02-22 20:35:25 KST -0.895609
  • 2021-01-30 01:14:50 KST -0.885611
  • 2019-07-12 08:15:10 KST -0.596317
  • 2019-07-10 06:20:47 KST -0.074018
  • 2019-02-11 08:56:26 KST -0.424397
  • 2019-02-11 08:38:19 KST -0.381832
  • 2018-09-09 06:40:12 KST -0.670946
  • 2018-07-26 10:43:42 KST -0.567518
  • Average -0.5786508

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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.