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

  • 2026-07-21 15:30:20 KST 0.015110
  • 2026-03-19 12:13:58 KST -0.052576
  • 2026-03-14 04:22:57 KST -0.019922
  • 2026-03-14 04:21:45 KST 0.034647
  • 2025-12-12 12:41:40 KST -0.123407
  • 2023-03-02 13:22:07 KST -0.098263
  • 2023-03-02 13:20:37 KST -0.065473
  • 2021-06-08 23:29:50 KST -0.023580
  • 2021-05-30 01:35:07 KST -0.009612
  • 2020-09-25 18:48:10 KST -0.051458
  • Average -0.0394534

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Popular checks

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.