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://for-s.seoultech.ac.kr/view/login.jsp server time check history

  • 2020-01-18 00:48:16 KST -0.801447
  • 2019-08-05 08:40:36 KST -0.241295
  • 2019-08-05 08:31:51 KST -0.232242
  • 2019-06-24 01:14:10 KST -0.319685
  • 2019-02-11 14:47:02 KST -0.414906
  • 2019-02-11 08:27:40 KST -0.351087
  • 2019-02-11 00:16:15 KST -0.957455
  • 2019-02-11 00:14:19 KST -0.922108
  • 2019-02-11 00:12:18 KST -0.964507
  • 2018-08-06 08:54:38 KST -0.877617
  • Average -0.6082349

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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.