To convert 0 days, 135 hours, and 0 minutes into a single unit of time, we first note that there are 24 hours in a day. Multiplying 0 days by 24 hours gives us 0 hours. Adding the initial 135 hours to this result gives us a total of 135 hours. To convert this back into days, division by 24 hours yields approximately 5.63 days. Hence, 0 days, 135 hours, and 0 minutes ago is equivalent to about 5.63 days in the past.