TDS="$(grep 'Logfile started' process.log |  awk '{print $3,$4}' | cut -d: -f2)"
echo "$TDS"


29.06.2019 23

cut -d: -f2-

cut -d: -f2

TDS="$(grep 'Logfile started' process.log |  awk '{print $3,$4}' | cut -d: -f2-)"
echo "$TDS"

$ echo ":29.06.2019 23:03:17" | cut -c 2-
29.06.2019 23:03:17

$ echo ':29.06.2019 23:03:17' | sed 's/^://'
29.06.2019 23:03:17

$ echo ':29.06.2019 23:03:17' | awk -F'^:' '{print $2}'
29.06.2019 23:03:17

$ echo ':29.06.2019 23:03:17' | grep -Po '^:K.*'
29.06.2019 23:03:17