It is not necessary to enter the time of day that you begin and end a trip. The first and last day of any trip are called "partial days", and
IRS Publication 463 addresses partial days as follows:
Travel for days you depart and return. For both the day you depart for and the day you return from a business trip, you must prorate the standard meal allowance (figure a reduced amount for each day). You can do so by one of two methods.
EZPerDiem automatically assumes Method 1 and
prorates the first and last day at 75%. You can change this proration amount to 100% in the Tools & Settings page if you determine that 100% is acceptable for you. EZPerDiem defaults to 75% because it is the most common, widely accepted proration rate by tax preparers in the flight crew tax industry.
See the following videos for additional information:
VIDEO: Why do I have to enter layovers?
VIDEO: How do I enter my layovers manually?
VIDEO: How do I enter red-eye or international trips?
