Enter the start time, and then enter the next start time when you get to it

The way we work
way we work, it would be nice if you could enter the start time
and then enter the next time when you get to it.
For example, when we drive out on assignments, it would be nice to be able to enter
"start from Alta at 0830" and when you arrive where you are going
continue on "start" and enter the arrival time.
Same with start and stop for the execution of the assignment.
Now we have to either make a note in the to-do list or write it down somewhere
place, it's not always easy to remember what time it was when you started or
started the job.