Check Time... Command
Purpose
The Check Time command can be used to determine whether your computer’s system time is synchronized with network time. In case that your system clock is not correct, you should not use the Calculate TOTP... command.
To check your computer’s time against network time
- From the Tools menu choose Check Time....
- NOTEFILE will check network time by making an HTTPS request to
my Web site to retrieve the network time (which is
assumed to be correct). This time is compared with your current system time.
If the difference is less than two seconds, your computer’s time
is assumed to be adequately synchronized with a
correct
time source. - If the difference is larger than two seconds, you will be informed that your system clock needs synchronization.
NOTEFILE compares the system time with the network time obtained from my Web site. If your computer does not have access to Internet or somehow my Web site is not available at that moment, you will get an error message. You may try later when you are online. Please contact me if the error persists.
Messages
- Your system clock seems to be correct.
It is only x.xxx seconds ahead/behind. - The Check Time... command will compare the local time with
network
time and will display this message if the absolute time difference is less than 2 seconds. The second line will show the calculated (or estimated) time difference. Please note that, because of network delays and bottlenecks you should not expect the calculated time difference to be exactly 0.000 seconds even for a perfectly synchronized system clock. Your computer’s time zone may also be wrong. - Your system clock is x.xxx seconds ahead/behind!
- This message suggests that your system clock is not synchronized.
The estimated time difference shown will indicate how far your system
clock is
away
from the correct time. Please, try again the Check Time... command and if you get a similar result, try to synchronize your system clock.
Error messages
If you get errors like Could not initialize OpenSSL library or VCRUNTIME140.dll was not found,
- for Windows you may need to (re-)install the latest Microsoft Visual C++ Redistributable: VC_redist.x64.exe
- for Linux you may need to run
$ sudo apt install libssl1.1
and retry this menu option.