What is the correct timing procedure when performing a holding pattern at a VOR?

When performing a holding pattern at a VOR, the correct procedure for timing is that it begins on the outbound leg, specifically when the aircraft is either over the VOR or abeam the VOR on the outbound leg, whichever occurs later. This timing procedure is essential as it ensures that you accurately measure the timing for the outbound leg, which is typically based on a standard timing of one minute, although it can be adjusted for air traffic control requirements or wind conditions.

Understanding this timing mechanism allows pilots to maintain proper spacing in the holding pattern, ensuring a systematic approach to arriving back at the VOR for the inbound leg. Starting the timing either at the VOR station or when cleared by ATC could lead to inconsistencies and misunderstandings in the holding pattern execution, and beginning timing immediately on the outbound leg does not align with the guidelines necessary for accurate navigation methods around VOR facilities.