What time did knocker-uppers typically start their rounds?
Frequently Asked Question about the extinct profession: Knocker-Upper
Knocker-uppers typically started their rounds around 4 or 5 in the morning, before the sun rose. They would go door to door, tapping on windows and using long poles to knock on upper floor windows, waking people up for work. This was a common practice in the 19th and early 20th centuries before alarm clocks became widely available.