The 1.11.1 version of BktTimeSync is provided as a free download on our website. The actual developer of the free software is IZ2BKT - Capelli Mauro. The software relates to Office Tools.
From the developer:
BktTimeSync adjusts the time on your PC using an Internet time server (NTP server) or a GPS receiver connected via USB, serial port, or Bluetooth. For the operation of this program you require an active Internet connection or a GPS receiver. The program uses the TSIP protocol.
You may want to check out more software, such as PlainSight Desktop Calendar, ListPro or RamCal, which might be similar to BktTimeSync.