NKO Atomic Clock

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

Chatroom by domain
우리말 English

http://yeyak.seoul.go.kr server time check history

  • 2023-09-06 06:58:27 KST -0.028986
  • 2023-07-19 11:57:09 KST -0.075843
  • 2023-07-19 11:55:19 KST -0.079558
  • 2023-07-19 10:59:31 KST -0.014074
  • 2023-07-19 10:49:27 KST -0.006802
  • 2023-07-17 13:30:07 KST -0.038140
  • 2023-07-17 11:56:28 KST -0.050526
  • 2023-07-13 11:56:21 KST -0.040532
  • 2023-07-13 11:53:51 KST 0.002017
  • 2023-07-13 11:50:24 KST -0.023365
  • Average -0.0355809

Recent view

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.


# 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.