Keep any handouts or itemized agendas from the training or distance learning course. These documents will help you remember what you achieved and any specific activities that took up significant amounts of time.
Check with your boss or the coordinator of the training program to see if they have any estimates for how many hours should be included in the training. They will have experience with the training and an idea of how to calculate your hours depending on the program.
Make a journal of the time you spent working and training. Write down the exact time you start and finish each training session. This is the best way to ensure accurate estimates. These journal entries can also be proof if you need to submit paperwork illustrating the amount of time you trained.
Use an online work hour calculator to get an idea of the hours you trained for. These calculators, such as the one hosted by MiracleSalad.com, will total the hours you trained over a few days.
Use a program like Excel to map out the time you spent training on long distance or resident material. Excel will help you organize the time, dates and type of training you completed. Creating a chart, or visual picture, of your training hours can often clarify how much work you have completed.