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://sugang.hongik.ac.kr/cn1000 server time check history

  • 2026-10-25 18:38:48 KST -0.280116
  • 2026-03-21 18:52:11 KST -0.005283
  • 2026-03-19 02:11:37 KST -0.030783
  • 2026-03-16 05:35:21 KST -0.009202
  • 2025-11-26 20:35:27 KST -0.031668
  • 2025-11-26 20:33:47 KST -0.063069
  • 2025-10-25 11:44:46 KST 0.000294
  • 2025-10-25 11:43:04 KST -0.056268
  • 2019-05-11 21:43:55 KST -0.004105
  • 2018-08-24 23:56:57 KST -0.027913
  • Average -0.0508113

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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.