41 C.F.R. § 301-11.19 How is my per diem calculated when I travel across the international dateline (IDL)?
Title 41 - Public Contracts and Property Management
When you cross the IDL your actual elapsed travel time will be used to compute your per diem entitlement rather than calendar days.
Title 41: Public Contracts and Property Management
PART 301–11—PER DIEM EXPENSES
Subpart A—General Rules
§ 301-11.19 How is my per diem calculated when I travel across the international dateline (IDL)?
