supervisor changing timesheet

[scoutman77]

I work for a phone company in Iowa, We get our schedule and submit our timesheets by email.
I had 3.5 hours overtime, my supervisor didn't think I had enough work to do to have overtime. He questioned some of the times I had listed (drive times). I admited the times needed adjusted, but the total times were the same. I worked late on a monday, tried to take friday afternoon off to keep the overtime down. I was paged Friday afternoon and had to work which put me over 40.
My question is... can my supervisor just take time off my timesheet to reduce the overtime?
(for instance.. one day I mistakenly put an hour of drive time on the morning, which should have been half an hour. but the rest of the hour should have been put to the days work, not just removed. same with the end of the day.
Thanks

[Pattymd]

If you worked the time, you must be paid for it. The supervisor can certainly correct your timesheet if it is incorrect, but it is fraud if the change results in your getting less pay than that to which you are legally entitled. BTW, what "drive time"?

[scoutman77]

I get paid when I leave the house in my company truck. The drive time is the amount of time it takes to get to a job site. for instance, it takes 30 min. to get to my nearest site, it takes 18 min. however we bill to the next quarter hour, so on the timesheet it shows 30 min. the time is spent at the site, but in reality is not "driving" the extra time.
I put on my timesheet, 8 to 9 drive to site. it should have been 8 to 8:30 drive to site. that was the mistake I admited to. same at the end of the day.
put 4 to 5 but should have been 4:30 to 5.
not counting the hour lunch at noon, all the time was spent working. sometimes we don't get our timesheets done at the end of the day, but at the end of the week. so it is done from memory.
My supervisor says I should have taken time off during the week, instead of working my eight hours each day, which I tried to go home early on Friday, but was paged to a trouble and had to go which gave me over 40 hours.
The super visor wants to change the aformentioned drive times to 8:30 to 9 and 4 to 4:30 to shave an hour off my timesheet.

[Pattymd]

Then don't do it from memory any longer. Seriously. Do it every day. Do it as many times a day as is necessary.

You're fortunate they are even paying you to drive from home to the first job site and from the last job site to home. That is not required by federal or Iowa state wage and hour laws. This would make it more difficult to show that it was work time for which the state Dept. of Labor would pursue the employer.

[scoutman77]

The company sets it up this way, because they would have to pay time to an office at the end of the day, the nearest office from my local is 3 hours. I understand taking the time to do the timesheet every day, but sometimes is not feasable as I would have to work later in the day, which is what is getting me in trouble in the first place. I was accused of creating problems so that I could work late to get overtime.