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://sugang.skku.edu/skku/ server time check history

  • 2022-02-22 07:54:30 KST -0.022315
  • 2022-02-22 07:38:46 KST 0.000540
  • 2022-02-22 07:36:58 KST -0.031037
  • 2022-02-21 23:27:56 KST -0.036283
  • 2022-02-20 18:59:17 KST -0.066390
  • 2022-02-20 18:56:18 KST -0.010190
  • 2022-02-17 09:58:00 KST -0.004296
  • 2022-02-17 09:56:43 KST -0.074526
  • 2022-02-17 09:55:33 KST -0.055213
  • 2022-02-17 09:53:04 KST -0.059402
  • Average -0.0359112

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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.