NKO Atomic Clock

Current time in milliseconds unit, dday remaining time calculator, elapsed time, stopwatch, server time checker

Chatroom by domain
우리말 English

https://docs.google.com/forms/d/15aGd9a93gBZjqDRjuExSHBHae04XGmDAdKM8UhZ3bno/viewform?edit_requested=true server time check history

  • 2022-01-17 11:25:51 KST 0.115486
  • 2021-10-29 11:13:19 KST 0.049995
  • 2018-05-06 07:07:09 KST 0.038250
  • 2018-05-01 13:21:26 KST -0.040672
  • 2018-04-22 18:08:25 KST 0.075645
  • 2018-04-21 21:30:38 KST 0.123687
  • 2018-04-17 01:48:26 KST 0.014166
  • 2018-04-16 23:50:36 KST 0.086093
  • 2018-04-14 20:03:00 KST -0.102439
  • 2018-04-09 01:46:40 KST 0.062879
  • Average 0.042309

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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.


# 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.