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://yeonan.github.io/sugangsim-v2/main1.html server time check history

  • 2025-09-03 11:05:39 KST -0.067906
  • 2025-09-02 22:36:55 KST -0.001010
  • 2025-09-02 21:22:21 KST -0.037641
  • 2025-08-26 14:14:15 KST 0.000590
  • 2025-08-25 21:51:55 KST -0.077151
  • 2025-08-25 21:49:54 KST -0.041174
  • 2025-08-12 11:26:09 KST -0.028429
  • 2025-08-12 11:24:37 KST 0.004250
  • 2025-04-24 08:58:58 KST -0.071996
  • 2025-04-24 08:31:57 KST 0.015254
  • Average -0.0305213

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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.