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
Chatroom by domain
우리말 English

https://ysweb.yonsei.ac.kr/websquare/websquare.jsp?w2xPath=/wq/sg_main.xml server time check history

  • 2021-07-11 21:55:19 KST -19.507027
  • 2021-06-08 20:49:56 KST -5.250290
  • 2021-06-08 07:58:03 KST -4.988515
  • 2021-06-08 07:56:20 KST -5.029792
  • 2021-06-08 07:55:12 KST -5.038247
  • 2021-06-08 07:53:02 KST -5.063510
  • 2021-06-08 07:49:28 KST -5.001093
  • 2021-06-08 07:43:54 KST -5.035738
  • 2021-06-08 07:41:15 KST -4.980822
  • 2021-06-08 07:37:19 KST -5.033186
  • Average -6.492822

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.