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

http://ucac.ulsan.go.kr/ server time check history

  • 2018-03-22 00:21:47 KST -0.063830
  • 2018-03-17 20:38:10 KST -0.047458
  • 2018-03-07 04:22:02 KST -0.118737
  • 2018-01-01 17:22:59 KST -0.114456
  • 2017-11-09 09:58:33 KST -0.841148
  • 2017-11-09 09:56:34 KST -0.473058
  • 2017-11-09 09:55:31 KST -0.465417
  • 2017-11-09 09:53:05 KST -0.412788
  • 2017-11-09 09:48:12 KST -0.816762
  • 2017-11-09 09:44:26 KST -0.692179
  • Average -0.4045833

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.