How to record total activity duration and travel time after suspending an activity?

Summary:

How to record or get total time spend on the activity once I suspend the activity and original activity status is updated to pending?

In suspend scenario, for example, if a technician initially travels for 10 minutes to the site and then decides to suspend the activity, the activity status in OFS would update to "pending." When the technician resumes, if they take 20 minutes for travel and 30 minutes to complete the task, the time recorded would only capture the 20 minutes of travel and 30 minutes of work, excluding the initial 10 minutes of travel. Need to know how to record the total time i.e., 30 minutes of travel and 30 minutes of activity duration.