This could be a result of which time slot the time was entered. If you are an hourly employee and you worked during the day but didn’t take any breaks, be sure to enter your out time in the last “out” slot.
For example, on August 1, if you worked only from 3:30pm to 6:00pm and did not work again on August 1, enter your time like below
Do not enter like below or the system will have issue calculating your hours: