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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우리말 English

http://www.csj.ac.kr/ server time check history

  • 2026-11-10 05:37:29 KST -0.976804
  • 2026-08-18 17:06:50 KST -1.495365
  • 2026-08-18 08:50:48 KST -0.836179
  • 2026-05-28 05:48:17 KST -0.862647
  • 2026-03-23 06:17:07 KST -0.645734
  • 2026-03-23 06:15:53 KST -0.610598
  • 2020-04-15 06:21:37 KST -839.481432
  • 2019-10-16 23:29:09 KST -2382.770648
  • 2019-10-15 22:13:48 KST -2381.240404
  • 2019-09-26 16:47:48 KST -2353.852206
  • Average -796.2772017

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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.

Information

# 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.