Time spent by an employee in travel as part of his principal
activity, such as travel from job site to job site during the workday,
must be counted as hours worked. Where an employee is required to report
at a meeting place to receive instructions or to perform other work
there, or to pick up and to carry tools, the travel from the designated
place to the work place is part of the day's work, and must be counted
as hours worked regardless of contract, custom, or practice. If an
employee normally finishes his work on the premises at 5 p.m. and is
sent to another job which he finishes at 8 p.m. and is required to
return to his employer's premises arriving at 9 p.m., all of the time is
working time. However, if the employee goes home instead of returning to
his employer's premises, the travel after 8 p.m. is home-to-work travel
and is not hours worked. (Walling v. Mid-Continent Pipe Line Co., 143 F.
2d 308 (C. A. 10, 1944))