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://www.hannam.ac.kr/ server time check history

  • 2019-04-16 07:10:08 KST 111.246017
  • 2018-08-19 16:29:16 KST 211.080718
  • 2018-05-17 09:07:57 KST 172.805596
  • 2018-05-08 20:34:31 KST 169.446384
  • 2018-05-03 13:04:03 KST 167.493286
  • 2018-04-15 00:22:41 KST 159.923248
  • 2018-03-28 11:00:43 KST 153.011307
  • 2018-03-22 21:03:31 KST 150.629255
  • 2018-03-12 06:42:00 KST 141.079781
  • 2018-03-03 01:21:38 KST 138.747926
  • Average 157.5463518

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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.