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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https://portal.hanyang.ac.kr/sugang/sulg.do server time check history

  • 2026-03-19 19:52:44 KST -0.039463
  • 2026-03-09 16:59:55 KST -0.021101
  • 2026-03-09 16:57:59 KST 0.009087
  • 2026-03-09 16:46:07 KST 0.001556
  • 2026-03-09 16:35:59 KST -0.055919
  • 2026-03-09 16:34:08 KST 0.007923
  • 2026-03-08 20:57:02 KST -0.024417
  • 2026-03-06 17:33:37 KST -0.014664
  • 2026-03-01 19:40:10 KST 0.013816
  • 2026-02-28 10:36:37 KST -0.287638
  • Average -0.041082

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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.