This looks to be an interesting software. It is timing software for your computer clock to keep it accurate. It can also sync your computer to the signal your working. Maybe some of the recent DXPeditions without internet could have used it. It may need some settings on JTAlert to change if you use it. I have not tried it myself but thought I'd pass it along. - Bill W2CQ

JTSync

JTSync is a simple utility that provides the ability to synchronize your computer clock over a network with world-wide NTP servers. When the Internet connection is not available, JTSync allows you to make time adjustments based on decoded QSOs within the WSJT-X application. JTSync supports joining a UDP multicast group when interacting with WSJT-X to run simultaneously with other applications such as JTAlert or GridTracker.
JTSync
Current version: 1.3
Size of a file zip: 183 KB (32-bit)
Date Published: August 23, 2020


The minimal requirements:
Windows XP/Vista/7/8/10
640x480 screen and higher
16bit colour and above
64Mb RAM and is higher

Download

http://www.dxshell.com/jtsync.html