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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http://facultyclub.snu.ac.kr/?p=76_write server time check history

  • 2019-10-11 06:06:45 KST -209.145086
  • 2019-10-09 09:02:52 KST -208.044293
  • 2019-04-01 09:29:10 KST -96.190512
  • 2019-04-01 09:28:04 KST -96.306658
  • 2019-04-01 09:25:11 KST -96.214922
  • 2019-04-01 09:18:03 KST -96.166955
  • 2019-04-01 08:57:10 KST -96.313431
  • 2019-04-01 00:14:36 KST -96.089520
  • 2019-03-30 23:42:20 KST -95.350630
  • Average -121.09133411111

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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.