Attempt 1
Using prompt $t$g
(as in the currently accepted answer) results in a prompt as in this example:
14:32:46,28>
Attempt 2
Using prompt $P - $T$H$H$H$G
(as in the previously posted answer) results in a prompt like in this example:
C:\Users\Pierre.Vriens - 14:32:46>
Attempt 3
Using prompt $T$H$H$H$H$H$H$G
(as mentioned also in a comment from OPer below the currently accepted answer) results in a prompt like in this example:
14:33>
So it looks like this attempt (= nr 3) is the correct answer ... (Credits: Daniel Williams), because:
$T
results in 14:32:46,28
.
$H$H$H$H$H$H
performs, 6 times, a backspace (i.e. removes the :46,28
part of that).
$G
adds >
to it again.