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

  • 2026-11-10 12:18:11 KST -0.009084
  • 2026-11-10 12:16:04 KST -0.026773
  • 2026-03-29 06:09:18 KST -0.055951
  • 2026-03-27 01:56:48 KST -0.022565
  • 2026-03-12 08:10:32 KST -0.023869
  • 2026-03-12 08:08:58 KST -0.040257
  • 2026-03-06 14:02:48 KST 0.004331
  • 2026-03-01 23:40:26 KST -0.042887
  • 2026-01-26 13:19:09 KST -0.071084
  • 2026-01-26 13:17:05 KST -0.048118
  • Average -0.0336257

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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.