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/e/1FAIpQLScV97YWZRMhd_sa0FeueJUwu099xw3ReR6pABjJ7MwHRb9Z_Q/viewform server time check history

  • 2023-09-27 18:37:39 KST -0.007535
  • 2023-09-25 21:53:55 KST 0.062733
  • 2023-09-23 20:28:01 KST -0.018615
  • 2023-09-23 20:26:09 KST -0.026067
  • 2023-09-22 21:39:06 KST 0.078944
  • 2023-09-19 20:51:23 KST -0.014485
  • 2023-09-19 01:03:15 KST 0.015351
  • 2023-09-18 18:53:54 KST 0.105872
  • 2023-09-18 18:29:49 KST 0.069804
  • 2023-09-18 18:28:19 KST 0.142250
  • Average 0.0408252

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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.