:loop
@echo off
for /f "tokens=2 delims==" %%a in ('wmic OS Get localdatetime /value') do set "dt=%%a"
set "YY=%dt:~2,2%" & set "YYYY=%dt:~0,4%" & set "MM=%dt:~4,2%" & set "DD=%dt:~6,2%"
set "HH=%dt:~8,2%" & set "Min=%dt:~10,2%" & set "Sec=%dt:~12,2%"

set "filewithtimestamp=C:\%YYYY%-%MM%-%DD% %HH%-%Min%-%Sec% УИК № 347 [cam1].ts"

streamlink.exe --hls-segment-threads 2 --default-stream best -o "%filewithtimestamp%" --url "http://streamer..."
goto loop