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://cu.ac.kr/sugang/ server time check history

  • 2026-10-25 21:35:50 KST -0.033727
  • 2026-09-14 22:01:00 KST -0.001954
  • 2026-09-14 18:29:52 KST 0.144980
  • 2026-09-13 18:31:46 KST -0.341320
  • 2026-09-06 07:24:17 KST -0.024037
  • 2026-09-05 21:11:17 KST 0.123850
  • 2026-09-05 15:52:02 KST -0.011475
  • 2026-07-12 04:59:05 KST 0.313260
  • 2026-03-20 21:22:50 KST -0.039124
  • 2026-03-07 06:31:20 KST -0.015570
  • Average 0.0114883

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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.