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://povis.postech.ac.kr/irj/portal server time check history

  • 2018-02-12 08:24:06 KST -0.038490
  • 2018-02-12 08:19:07 KST -0.345119
  • 2017-12-05 07:09:12 KST -0.056815
  • 2017-12-05 06:59:19 KST -0.037317
  • 2017-12-05 06:51:57 KST -0.009671
  • 2017-09-06 08:54:27 KST -0.027727
  • 2017-05-23 07:29:20 KST -0.181319
  • 2017-05-23 07:28:17 KST -0.063481
  • 2017-05-23 07:24:15 KST -0.018823
  • 2017-05-23 07:22:28 KST -0.054049
  • Average -0.0832811

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.